Is Cosmic Speed-Up Due to New Gravitational Physics?

Abstract

We show that cosmic acceleration can arise due to very tiny corrections to the usual gravitational action of General Relativity of the form $R^n$, with $n<0$. This eliminates the need for dark energy, though it does not address the cosmological constant problem. Since a modification to the Einstein-Hilbert action of the form $R^n$, with $n>0$, can lead to early-time inflation, our proposal provides a unified and purely gravitational origin for the early and late time accelerating phases of the Universe.

4 pages, 1 figure, RevTeX. Typos corrected, references updated

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• Future Singularities of Isotropic Cosmologies
• Cosmological expansion and the uniqueness of gravitational action
• Galaxy morphology rules out astrophysically relevant Hu-Sawicki $f(R)$ gravity
• Modelling non-linear redshift-space distortions in the galaxy clustering pattern: systematic errors on the growth rate parameter
• Static traversable wormhole solutions in $f(R,L_m)$ gravity
• Consistent long distance modification of gravity from inverse powers of the curvature
• Dark Energy in Practice
• f(R) cosmology with torsion
• The Jebsen-Birkhoff theorem in alternative gravity
• Dark Energy Model in Anisotropic Bianchi Type-III Space-Time with Variable EoS Parameter
• Galaxy Infall Kinematics as a Test of Modified Gravity
• Noether symmetric $f(R)$ quantum cosmology and its classical correlations
• Dimensionally Regulated Graviton 1-Point Function in de Sitter
• Curvature driven acceleration : a utopia or a reality ?
• Hybrid metric-Palatini stars
• Cosmological hydrogen recombination: The effect of extremely high-n states
• The mass-radius relation for neutron stars in $f(R)=R+\alpha R^2$ gravity: a comparison between purely metric and torsion formulations
• In search of the dark matter dark energy interaction: a kinematic approach
• Emergent Universe Scenario in the Einstein-Gauss-Bonnet Gravity with Dilaton
• Dark energy and particle mixing
• Spherically symmetric black holes with electric and magnetic charge in extended gravity: Physical properties, causal structure, and stability analysis in Einstein's and Jordan's frames
• Remarks on generalized Gauss-Bonnet dark energy
• 6+1 lessons from f(R) gravity
• A quantitative analysis of singular inflation with scalar-tensor and modified gravity
• Kinematic model-independent reconstruction of Palatini $f(R)$ cosmology
• A sub-horizon framework for probing the relationship between the cosmological matter distribution and metric perturbations
• Constraining Van der Waals quintessence by observations
• Anisotropic dark energy model with a hybrid scale factor
• Parameterizing the Effect of Dark Energy Perturbations on the Growth of Structures
• Constraining Modified Gravity and Growth with Weak Lensing
• Halo modelling in chameleon theories
• Energy-momentum complexes in f(R) theories of gravity
• Large Scale Structure Constraints for a Class of f(R) Theories of Gravity
• Limits on deviations from the inverse-square law on megaparsec scales
• Consistent perturbations in an imperfect fluid
• Magnetized strange quark model with Big Rip singularity in $f(R,T)$ gravity
• Interacting Dark Energy in f(T) cosmology : A Dynamical System analysis
• Relaxing Nucleosynthesis Constraints on Brans-Dicke Theories
• New interactions in the dark sector mediated by dark energy
• Noether gauge symmetry for $f(R)$ gravity in Palatini formalism
• $f(R)$ gravity solutions for evolving wormholes
• Higher-order gravity and the cosmological background of gravitational waves
• Consequences of a Cosmic Scalar with Kinetic Coupling to Curvature
• Connecting early and late universe by $f(R)$ gravity
• The cosmic snap parameter in f(R) gravity
• Impact on the power spectrum of Screening in Modified Gravity Scenarios
• On dynamical systems approaches and methods in $f(R)$ cosmology
• Noether Charge and Black Hole Entropy in Modified Theories of Gravity
• Solar System constraints to nonminimally coupled gravity
• Testing Gravity Using Large-Scale Redshift-Space Distortions
• Charged rotating black holes coupled with nonlinear electrodynamics Maxwell field in the mimetic gravity
• KiDS+GAMA: Constraints on Horndeski gravity from combined large-scale structure probes
• Super-acceleration on the Brane by Energy Flow from the Bulk
• Thermodynamical correspondence of $f(R)$ gravity in Jordan and Einstein frames
• Towards inflation and dark energy cosmologies from modified Gauss-Bonnet theory
• Explosive phenomena in modified gravity
• Cosmological equivalence between the Finsler-Randers space-time and the DGP gravity model
• Microscopic and Macroscopic Behaviors of Palatini Modified Gravity Theories
• Dynamical Relaxation of Dark Energy: A Solution to Early Inflation, Late-time Acceleration and the Cosmological Constant Problem
• MOND-like Fractional Laplacian Theory
• Model independent inference of the expansion history and implications for the growth of structure
• Constraining $f(R)$ gravity models with disappearing cosmological constant
• Stellar Structure and Tests of Modified Gravity
• How clustering dark energy affects matter perturbations
• Analytical solutions of the geodesic equation in the spacetime of a black hole in f(R) gravity
• Cylindrical Solutions in Modified f(T) Gravity
• Quasi-cosmological Traversable Wormholes in $f(R)$ Gravity
• Structure formation in modified gravity models alternative to dark energy
• Efficient simulations of large scale structure in modified gravity cosmologies with comoving Lagrangian acceleration
• Quadratic quantum cosmology with Schutz' perfect fluid
• Chameleon scalar fields in relativistic gravitational backgrounds
• Star Models with Dark Energy
• Stellar configurations in f(R) theories of gravity
• A general solution in the Newtonian limit of f(R)- gravity
• A parametric reconstruction of the cosmological jerk from diverse observational data sets
• Acceleration of the universe: a reconstruction of the effective equation of state
• Hyperbolicity of scalar-tensor theories of gravity
• On Higher Order Gravities, Their Analogy to GR, and Dimensional Dependent Version of Duff's Trace Anomaly Relation
• $f(R)$-gravity from Killing Tensors
• Non-trivial black hole solutions in $f(R)$ gravitational theory
• The cosmological constant as an eigenvalue of f(R)-gravity Hamiltonian constraint
• On the absence of the usual weak-field limit, and the impossibility of embedding some known solutions for isolated masses in cosmologies with f(R) dark energy
• On compatibility of string effective action with an accelerating universe
• Cosmological dynamics in f(R) gravity
• On the non-attractive character of gravity in f(R) theories
• New rotating black holes in non-linear Maxwell $f(\mathcal{R})$ gravity
• Aspects of Axion $F(R)$ Gravity
• The electromagnetic dark sector
• The effect of $f(R,T)$ modified gravity on mass and radius of pulsar HerX1
• Time-Dependent Wormhole Solutions of $f(R)$ Theory of Gravity and Energy Conditions
• Dark energy, matter creation and curvature
• Junction conditions in extended Teleparallel gravities
• Cosmology in generalized Horndeski theories with second-order equations of motion
• The Linear Growth of Structure in the R_h=ct Universe
• Relativistic effects in galaxy clustering in a parametrized post-Friedmann universe
• Observational Constraints on Kinetic Gravity Braiding from the Integrated Sachs-Wolfe Effect
• The Integrated Sachs-Wolfe effect in $f(R)$ gravity
• Precision Predictions for the Primordial Power Spectra from f(R) Models of Inflation
• Wormhole geometries in Eddington-inspired Born-Infeld gravity
• Matter Power Spectrum Emulator for f(R) Modified Gravity Cosmologies
• Constraining Parity Violation in Gravity with Measurements of Neutron-Star Moments of Inertia
• Metric gravity theories and cosmology. I. Physical interpretation and viability
• Consistency of $f(R)=\sqrt{R^2-R_0^2}$ Gravity with the Cosmological Observations in Palatini Formalism
• Revisiting chameleon gravity - thin-shells and no-shells with appropriate boundary conditions
• Cosmological Constraints from Hubble Parameter on f(R) Cosmologies
• Buchdahl-Bondi limit in modified gravity: Packing extra effective mass in relativistic compact stars
• Structure Formation by the Fifth Force III: Segregation of Baryons and Dark Matter
• Comparison between different methods of model selection in cosmology
• Phantom phase power-law solution in $f(G)$ gravity
• Unveiling the Dynamics of the Universe
• Wormhole solutions in $f(R)$ Gravity
• Cosmology with nonminimal kinetic coupling and a power-law potential
• Constraining Extended Gravity Models by S2 star orbits around the Galactic Centre
• Constraints on f(R) theory and Galileons from the latest data of galaxy redshift surveys
• Existence of bulk viscous universe in $f(R,T)$ gravity and confrontation with observational data
• Signatures of Horndeski gravity on the Dark Matter Bispectrum
• Acceleration of the universe in the Einstein frame of a metric-affine f(R) gravity
• Cosmic vector for dark energy: constraints from SN, CMB and BAO
• The Cauchy problem in hybrid metric-Palatini f(X)-gravity
• Perturbation of the metric around a spherical body from a nonminimal coupling between matter and curvature
• The Evolution of Bias - Generalized
• F(R) gravity's rainbow and its Einstein counterpart
• The metric-affine formalism of f(R) gravity
• Collider Signals of Gravitational Fixed Points
• The Adiabatic Instability on Cosmology's Dark Side
• Anomalous coupling of scalars to gauge fields
• Black hole solutions in massive gravity
• Estimation of Cosmological Parameters from HI Observations of Post-reionization Epoch
• Einstein's Theory of Gravity and the Problem of Missing Mass
• Testing (modified) gravity with 3D and tomographic cosmic shear
• Reconstructing f(R) theory according to holographic dark energy
• Cosmological perturbations in Palatini modified gravity
• Post-Einsteinian tests of linearized gravitation
• Palatini formulation of the $R^{-1}$modified gravity with an additionally squared scalar curvature term
• UV stable, Lorentz-violating dark energy with transient phantom era
• Horizon Entropy in Modified Gravity
• Supermassive Neutron Stars in Axion $F(R)$ Gravity
• An alternative explanation of the conflict between 1/R gravity and solar system tests
• The cosmic jerk parameter in f(R) gravity
• Black hole solutions in f(R) gravity coupled with non-linear Yang-Mills field
• Field equations and cosmology for a class of nonlocal metric models of MOND
• Constraining f(T) gravity by dynamical system analysis
• Dark energy: investigation and modeling
• Spherical collapse in f(R) gravity and the Belinskii-Khalatnikov-Lifshitz conjecture
• Generalized dark gravity
• Cosmological models with Lagrange Multiplier Field
• Quintessential inflation in Palatini $f(R)$ gravity
• Scale-dependent halo bias from scale-dependent growth
• A general variational principle for spherically symmetric perturbations in diffeomorphism covariant theories
• First-order thermodynamics of Horndeski gravity
• A combined measurement of cosmic growth and expansion from clusters of galaxies, the CMB and galaxy clustering
• Non-vacuum Solutions of Bianchi Type VI_0 Universe in f(R) Gravity
• Lagrangian perturbation theory for modified gravity
• Hierarchical clustering in chameleon $f(R)$ gravity
• The cosmology in f(R,T) gravity without dark energy
• Cosmological perturbations and observational constraints on nonlocal massive gravity
• Gravitational Wave Polarizations in $f(R)$ Gravity and Scalar-Tensor Theory
• Disformal invariance of cosmological perturbations in a generalized class of Horndeski theories
• Scalar Gravitational Radiation from Binaries: Vainshtein Mechanism in Time-dependent Systems
• Principal Component Analysis of Modified Gravity using Weak Lensing and Peculiar Velocity Measurements
• Constraining f(R) gravity with PLANCK data on galaxy cluster profiles
• Does a black hole rotate in Chern-Simons modified gravity?
• Palatini $R^2$ Quintessential Inflation
• Effects of Spatial Curvature on the $f(R)$ Gravity Phase Space: no Inflationary Attractor?
• Power-law solutions in $f(T)$ gravity
• Constraints on $R^n$ gravity from precession of orbits of S2-like stars: a case of a bulk distribution of mass
• AdS and stabilized extra dimensions in multidimensional gravitational models with nonlinear scalar curvature terms 1/R and R^4
• Dynamically avoiding fine-tuning the cosmological constant: the "Relaxed Universe"
• Holes in the ghost condensate
• Exploring the liminality: properties of haloes and subhaloes in borderline $f(R)$ gravity
• Testing an exact $f(R)$-gravity model at Galactic and local scales
• Cosmological perturbation in f(R,G) theories with a perfect fluid
• Multi-Scalar-Tensor Equivalents for Modified Gravitational Actions
• Energy conditions constraints on a class of f(R)-gravity
• Generalised Ellis-Bronnikov Wormholes in $f(R)$ Gravity
• Inflation in mimetic f(G) gravity
• Strong energy condition and the repulsive character of f(R) gravity
• Accelerating dark energy models with anisotropic fluid in Bianchi type-$V{I}_0$ space-time
• Cosmic equation of state from combined angular diameter distances: Does the tension with luminosity distances exist?
• $\Lambda$CDM Bounce Cosmology without $\Lambda$CDM: the case of modified gravity
• Constraints on the optical depth of galaxy groups and clusters
• Phantom-Like Behavior in $f(R)$-Gravity
• A detailed analysis of structure growth in $f(R)$ theories of gravity
• Spherically symmetric vacuum solutions of modified gravity theory in higher dimensions
• Generation of spherically symmetric metrics in $f\left(R\right)$ gravity
• Higher-derivative gravity in brane world models
• Probing deviations from General Relativity with the Euclid spectroscopic survey
• Practical solutions for perturbed f(R) gravity
• Modified f(R) gravity from scalar-tensor theory and inhomogeneous EoS dark energy
• Aspects of Neutrino Oscillation in Alternative Gravity Theories
• Large-Scale Structure in Brane-Induced Gravity I. Perturbation Theory
• Near Scale Invariance with Modified Dispersion Relations
• Does the Big Rip survive quantization?
• Non-minimal kinetic coupling and the phenomenology of dark energy
• (Regular) Black holes in conformal Killing gravity coupled to nonlinear electrodynamics and scalar fields
• Stability of Anisotropic Stellar Filaments
• Possible antigravity regions in $F(R)$ theory?
• Detectability of Torsion Gravity via Galaxy Clustering and Cosmic Shear Measurements
• An Exponential F(R) Dark Energy Model
• Non-singular models of universes in teleparallel theories
• Cosmological dynamics of fourth order gravity: A compact view
• Reconstruction of f(T) gravity according to holographic dark energy
• Non-minimal Maxwell-Modified Gauss-Bonnet Cosmologies: Inflation and Dark Energy
• The Newtonian limit of metric gravity theories with quadratic Lagrangians
• Constraints on Dirac-Born-Infeld type dark energy models from varying alpha
• Neutron stars in $f(R)$ gravity and scalar-tensor theories
• Constraints on $f(R)$ theories of gravity from GW170817
• On Anisotropic Dark Energy
• Marked clustering statistics in $f(R)$ gravity cosmologies
• Spherical inhomogeneous solutions of Einstein and scalar-tensor gravity: a map of the land
• The signature of dark energy perturbations in galaxy cluster surveys
• Chameleons in the Early Universe: Kicks, Rebounds, and Particle Production
• New Agegraphic Dark Energy in $f(R)$ Gravity
• The analytical discussion on strong gravitaional lensing for a gravitational source with a $f(R)$ global monopole
• Rotating Neutron Stars in F(R) Gravity with Axions
• Using a phenomenological model to test the coincidence problem of dark energy
• Standard Cosmological Evolution in a Wide Range of f(R) Models
• Probing gravity at large scales through CMB lensing
• Cosmological Perturbations in Elastic Dark Energy Models
• Non-Metric Gravity I: Field Equations
• Multitracer cosmological line intensity mapping mock lightcone simulation
• Superbounce and Loop Quantum Cosmology Ekpyrosis from Modified Gravity
• A Dynamical System Analysis of $f(R,T)$ Gravity
• The generalized second law of gravitational thermodynamics on the apparent horizon in f(R)-gravity
• Crossing of the w=-1 Barrier in Two-Fluid Viscous Modified Gravity
• Renormalization group scale-setting from the action - a road to modified gravity theories
• Cosmological phase space of generalized hybrid metric-Palatini theories of gravity
• Photon Geodesics in FRW Cosmologies
• Horndeski theories confront the Gravity Probe B experiment
• Cosmic acceleration and crossing of $\omega =-1$ in non-minimal modified Gauss-Bonnet gravity
• Primordial Perturbations in Einstein-Aether and BPSH Theories
• Anisotropic stress and stability in modified gravity models
• Projected Constraints on Modified Gravity Cosmologies from 21 cm Intensity Mapping
• Black hole perturbation in parity violating gravitational theories
• Phantom cosmology in an Extended Theory of Gravity
• Bouncing Models in an Extended Gravity Theory
• Anisotropic solutions in f(R) Gravity
• The Raychaudhuri equation in homogeneous cosmologies
• Thermodynamics of viscous dark energy in an RSII braneworld
• Anisotropic compact stars in higher-order curvature theory
• COSMOS weak-lensing constraints on modified gravity
• Logarithmic corrected Polynomial $f(R)$ inflation mimicking a cosmological constant
• Testing logarithmic corrections on $R^2$-exponential gravity by observational data
• Relaxing a large cosmological constant
• Anisotropic quark stars in $f(R)=R^{1+\epsilon }$ gravity
• The accelerating universe and a limiting curvature proposal
• Non-minimal derivative coupling gravity in cosmology
• Massive gravity and structure formation
• A new approach to the analysis of the phase space of f(R)-gravity
• Prospects for measuring the relative velocities of galaxy clusters in photometric surveys using the kinetic Sunyaev-Zel'dovich Effect
• Instability of a Kerr black hole in f(R) gravity
• Electromagnetic Asymmetry, Relegation of Curvature Singularities of Charged Black Holes, and Cosmological Equations of State in View of the Born--Infeld Theory
• Moment of inertia of slowly rotating anisotropic neutron stars in $f(R,T)$ gravity
• Non-minimal geometry-matter couplings in Weyl-Cartan space-times: $f(R,T,Q,T_m)$ gravity
• Gravitational Waves in Viable f(R) Models
• Constraining the evolution of dark energy with type Ia supernovae and gamma-ray bursts
• Five-dimensional generalized $f(R)$ gravity with curvature-matter coupling
• DGP Cosmology with a Non-Minimally Coupled Scalar Field on the Brane
• Primordial Neutrinos, Cosmological Perturbations in Interacting Dark-Energy Model: CMB and LSS
• Focusing of geodesic congruences in an accelerated expanding Universe
• Modified gravity in Arnowitt-Deser-Misner formalism
• Late-time constraints on modified Gauss-Bonnet cosmology
• Spherically symmetric static vacuum solutions in hybrid metric-Palatini gravity
• Cosmic relic abundance and f(R) gravity
• The thermodynamic quantities of a black hole with an $f(R)$ global monopole
• Cosmic age, Statefinder and $Om$ diagnostics in the decaying vacuum cosmology
• Traversable wormhole models in $f(R)$ gravity
• Characterizing the linear growth rate of cosmological density perturbations in an f(R) model
• Scalar field mass in generalized gravity
• Dynamics of holographic vacuum energy in the DGP model
• On the Kuzmin model in fractional Newtonian gravity
• Observational signatures of the theories beyond Horndeski
• Bumpy black holes from spontaneous Lorentz violation
• Jordan frame no-hair for spherical scalar-tensor black holes
• Gravitational Redshift of Galaxies in Clusters from the Sloan Digital Sky Survey and the Baryon Oscillation Spectroscopic Survey
• Cosmology of F(R) nonlinear massive gravity
• Scalar-tensor cosmology with R^{-1} curvature correction by Noether Symmetry
• Catastrophic Consequences of Kicking the Chameleon
• On the nature of dark energy: the lattice Universe
• Fixed points in interacting dark energy models
• The splashback radius in symmetron gravity
• The growth factor of matter perturbations in an f(R) gravity
• Accelerating Universe and Cosmological Perturbation in the Ghost Condensate
• Constrained evolution of effective equation of state parameter in non-linear $f(R,L_m)$ dark energy model: Insights from Bayesian analysis of cosmic chronometers and Pantheon samples
• An accurate perturbative approach to redshift space clustering of biased tracers in modified gravity
• Position and frequency shifts induced by massive modes of the gravitational wave background in alternative gravity
• Modified teleparallel gravity with higher-derivative torsion terms
• Generalized Mattig's relation in Brans-Dicke-Rastall gravity
• Gravitational Field of a Global Monopole in a Modified Gravity
• Spherical Symmetric Solution in f(R) Model Around Charged Black Hole
• Cosmic Acceleration From Matter-Curvature Coupling
• Modified f(G) gravity models with curvature-matter coupling
• Black hole perturbation in nondynamical and dynamical Chern-Simons gravity
• On $f(R)$ gravity in scalar-tensor theories
• Statefinder diagnostic and constraints on the Palatini f(R) gravity theories
• Cosmological reconstructed solutions in extended teleparallel gravity theories with a teleparallel Gauss-Bonnet term
• Searching for scalar gravitational interactions in current and future cosmological data
• Constraining DGP Gravity from Observational Data
• Effects of Cosmological Constant on Clustering of Galaxies
• Thermodynamic properties of modified gravity theories
• Post-Einsteinian tests of gravitation
• Eguchi-Hanson like space-times in F(R) gravity
• Compactifying the state space for alternative theories of gravity
• Beyond delta: Tailoring marked statistics to reveal modified gravity
• Duality extended Chaplygin cosmologies with a big rip
• Modeling Transit Dark Energy in $f(R,L_m)$-gravity
• A Conformally Flat Generalized Ricci Recurrent Spacetime in F(R)-Gravity
• Matter stability in modified teleparallel gravity
• Constraints on the massive graviton dark matter from pulsar timing and precision astrometry
• Compact Stars in $f(\mathcal{R},\mathcal{G},\mathcal{T})$ Gravity
• Testing for dynamical dark energy models with redshift-space distortions
• Halo Scale Predictions of Symmetron Modified Gravity
• Thermodynamic topology of topological black hole in $F(R)$-ModMax gravity's rainbow
• A Geometrical Approach to Strong Gravitational Lensing in f(R) Gravity
• Fifth force constraints from the separation of galaxy mass components
• The CMB spectrum in Cardassian models
• Quasinormal modes and their anomalous behavior for black holes in $f(R)$ gravity
• Constraints on Energy Momentum Squared Gravity from cosmic chronometers and Supernovae Type Ia data
• Brane induced gravity from asymmetric warped compactification
• Unsuccessful cosmology with Modified Gravity Models
• Modified Dispersion Relations from the Renormalization Group of Gravity
• "Detuned" f(R) gravity and dark energy
• The $H_0$ Tension in Non-flat QCDM Cosmology
• The black hole at the Galactic Center: observations and models
• Reconstructing the potentials for the quintessence and tachyon dark energy, from the holographic principle
• Cosmological entropy and generalized second law of thermodynamics in $F(R,G)$ theory of gravity
• An analysis of the Sultana-Dyer cosmological black hole solution of the Einstein equations
• Probing Dark Energy Dynamics from Current and Future Cosmological Observations
• Constraints on f(R) cosmologies from strong gravitational lensing systems
• The Relaxed Universe: towards solving the cosmological constant problem dynamically from an effective action functional of gravity
• Effective field theory of modified gravity on the spherically symmetric background: leading order dynamics and the odd-type perturbations
• Enhanced Peculiar Velocities in Brane-Induced Gravity
• Higher-Derivative $f(R,\square R,T)$ Theories of Gravity
• Naked Singularity Formation In f(R) Gravity
• Noether Symmetry Approach in Energy-Momentum Squared Gravity
• Approach to exact inflation in modified Friedmann equation
• Observational constrained $F(R,\mathcal{G})$ gravity cosmological model and the dynamical system analysis
• On the current status of Modified Gravity
• Genesis of Dark Energy: Dark Energy as Consequence of Release and Two-stage Tracking Cosmological Nuclear Energy
• First-order thermodynamics of scalar-tensor cosmology
• Constraining the $f(R,T)=R+2\lambda T$ cosmological model using recent observational data
• Radial pulsations, moment of inertia and tidal deformability of dark energy stars
• Chaplygin-gas Solutions of f(R) Gravity
• New MGCAMB tests of gravity with CosmoMC and Cobaya
• Perturbations in electromagnetic dark energy
• Recent advances in cosmological singularities
• Cosmological constant and late transient acceleration of the universe in the Horava-Witten Heterotic M-Theory on S^{1}/Z_{2}
• On the motion of a test particle around a global monopole in a modified gravity
• A no-hair theorem for spherically symmetric black holes in $R^2$ gravity
• New inhomogeneous universes in scalar-tensor and f(R) gravity
• Curvature Singularities from Gravitational Contraction in f(R) Gravity
• Cosmic acceleration in non-canonical scalar field model - An interacting scenario
• Dark Energy from Gauss-Bonnet and non-minimal couplings
• CMB Temperature and Matter Power Spectrum in a Decay Vacuum Dark Energy Model
• Spatially Covariant Theories of a Transverse, Traceless Graviton, Part I: Formalism
• Analytical solutions in $R+q{R}^n$ cosmology from singularity analysis
• Modeling the Phase-Space Distribution around Massive Halos
• Three-Point Correlations in f(R) Models of Gravity
• The constrained cosmological model in Lyra geometry
• Acceleration of the Universe via f(R) Gravities and The Stability of Extra Dimensions
• Constraining Newtonian stellar configurations in f(R) theories of gravity
• A $f(R)$-gravity model of the Sunyaev-Zeldovich profile of the Coma cluster compatible with {\it Planck} data
• Analytic Solution of the Starobinsky Model for Inflation
• Perturbative approach for mass varying neutrinos coupled to the dark sector in the generalized Chaplygin gas scenario
• Clustering of Galaxies with Dynamical Dark Energy
• Phantom fluid wormhole in $f(R,T)$ gravity
• Turnaround radius in $f(R)$ model
• Breakdown of the initial value formulation of scalar-tensor gravity and its physical meaning
• Expansion history and f(R) modified gravity
• f(R) Gravities à la Brans-Dicke
• New class of hybrid metric-Palatini scalar-tensor theories of gravity
• Constraining viscous dark energy equation of state in $f(R,L_m)$ gravity
• Bouncing cosmology in modified gravity with higher-order Gauss-Bonnet curvature term
• Modified gravity, Dark Energy and MOND
• Coupled quintessence with double exponential potentials
• Dynamical Systems analysis of an interacting dark energy model in the Brane Scenario
• J-PAS: forecasts on dark energy and modified gravity theories
• R^n gravity and the chameleon
• Accelerated expansion in modified gravity with a Yukawa-like term
• Gravitational baryogenesis models comparison in f(R) Gravity
• Stealth Acceleration and Modified Gravity
• Homogeneous cosmologies in generalized modified gravity
• Scalar-tensor theories, trace anomalies and the QCD-frame
• Cosmological data analysis of f(R) gravity models
• Cosmic age test in inhomogeneous cosmological models mimicking $\Lambda$CDM on the light cone
• How a projectively flat geometry regulates $F(R)$-gravity theory?
• Reconstruction of $f(R)$ gravity models for an accelerated universe using Raychaudhuri equation
• Gravitational waveforms from the quasicircular inspiral of compact binaries in massive Brans-Dicke theory
• The dynamical viability of scalar-tensor gravity theories
• Crossing the Phantom Divide Line in a DGP-Inspired $F(R,\varphi )$-Gravity
• Probing $f(R)$ cosmology with sterile neutrinos via measurements of scale-dependent growth rate of structure
• Dark Energy and Equation of State Oscillations with Collisional Matter Fluid in Exponential Modified Gravity
• A model independent approach to the study of $f(R)$ cosmologies with expansion histories close to $\Lambda$CDM
• Cosmological tests of modified gravity: constraints on $F(R)$ theories from the galaxy clustering ratio
• Observational Constraints on Interacting Dark Matter Model Without Dark Energy
• Observational constraints on decaying vacuum dark energy model
• Geodesic Congruences in the Palatini f(R) Theory
• "Dark energy" in the Local Void
• Model-Independent Reconstruction of the Expansion History of the Universe from Type Ia Supernovae
• Constraining $F(R)$ bouncing cosmologies with primordial black holes
• Cosmological bounces in spatially flat FRW spacetimes in metric f(R) gravity
• Parametrised modified gravity and the CMB Bispectrum
• Gravitational Redshift Constraints on the Effective Theory of Interacting Dark Energy
• Bayesian comparison of nonstandard cosmologies using type Ia supernovae and BAO data
• Does $\Lambda$CDM really be in tension with the Hubble diagram data?
• Cosmic constraint on massive neutrinos in viable f(R) gravity with producing LCDM background expansion
• Cosmology of non-minimal derivative coupling to gravity in Palatini formalism and its chaotic inflation
• Quantum Equivalence Principle Violations in Scalar-Tensor Theories
• Cosmological Evolution Across Phantom Crossing and the Nature of the Horizon
• Cosmological constraints on a classical limit of quantum gravity
• Palatini f(R) gravity as a fixed point
• Consistency check of ΛCDM phenomenology
• Cosmic Dynamics in $F(R,\varphi )$ Gravity
• Anisotropic stellar models admitting conformal motion
• Asymptotically Lifshitz black hole solutions in F(R) gravity
• Testing f(R) gravity with the simulated data of gravitational waves from the Einstein Telescope
• Probing modified gravity theories with the Sandage-Loeb test
• Modifying Gravity: You Can't Always Get What You Want
• Second-order matter density perturbations and skewness in scalar-tensor modified gravity models
• Modified GBIG Scenario as an Alternative for Dark Energy
• Compact stellar models in modified gravity
• Gauge Formulation for Higher Order Gravity
• Higher curvature gravity at the LHC
• Convolution Lagrangian perturbation theory for biased tracers beyond general relativity
• On the junction conditions in $f(R)$-gravity with torsion
• The Universal Property of the Entropy Sum of Black Holes in All Dimensions
• Deep connection between f(R) gravity and the interacting dark sector model
• Almost pseudo-Ricci symmetric spacetime solutions in $F(R)$-gravity
• The phase-space of generalized Gauss-Bonnet dark energy
• Accelerating models with a hybrid scale factor in extended gravity
• Physical Parameters for Stable $f(R)$ Models
• Statefinder diagnostic for cosmology with the abnormally weighting energy hypothesis
• The present universe in the Einstein frame, metric-affine R+1/R gravity
• Boson stars in Palatini $f(\mathcal{R})$ gravity
• Coincidence Problem in $f(R)$ Gravity Models
• Analytic charged BHs in $f(\mathcal{R})$ gravity
• Cosmography and large scale structure by f(R) gravity: new results
• Alternative mechanism of avoiding the big rip or little rip for a scalar phantom field
• Generalized modified gravity with the second order acceleration equation
• Equivalence between Horndeski and beyond Horndeski theories and imperfect fluids
• Scalar mode propagation in modified gravity with a scalar field
• Spontaneous symmetry breaking in cosmos: The hybrid symmetron as a dark energy switching device
• Clifton's spherical solution in f(R) vacuo harbours a naked singularity
• Galaxy-galaxy weak gravitational lensing in $f(R)$ gravity
• Modified gravity and coupled quintessence
• Exploring wormhole solutions in curvature-matter coupling gravity supported by noncommutative geometry and conformal symmetry
• Spherically symmetric collapse of a perfect fluid in f(R) gravity
• Dynamical Stability in presence of non-minimal derivative dependent coupling of $k$-essence field with a relativistic fluid
• Scalar-multi-tensorial equivalence for higher order $f\left(R,{\nabla }_{\mu }R,{\nabla }_{{\mu }_1}{\nabla }_{{\mu }_2}R,...,{\nabla }_{{\mu }_1}...{\nabla }_{{\mu }_n}R\right)$ theories of gravity
• Strong lensing probability in TeVeS theory
• Relation between the Turnaround radius and virial mass in $f(R)$ model
• Modified gravity inspired DGP brane cosmology
• Reconstruction of interaction rate in Holographic dark energy
• Modified-gravity theories with nondynamical background fields
• Cosmological dynamics of interacting dark energy and dark matter in viable models of f(R) gravity
• Stable super-inflating cosmological solutions in f(R)-gravity
• Instability of Chaplygin gas trajectories in unified dark matter models
• A fluid os strings as a viable candidate to the dark side of the universe
• Is the Universe Simpler than LCDM?
• New probe of gravity: strongly lensed gravitational wave multi-messenger approach
• Curvature Inspired Cosmological Scenario
• f(R) gravity on non-linear scales: The post-Friedmann expansion and the vector potential
• Modified arctan-gravity model mimicking a cosmological constant
• Parameterizing and Measuring Dark Energy Trajectories from Late-Inflatons
• Age of the Universe in the Cardassian Model
• Constraining f(R) models with cosmic chronometers and the HII galaxy Hubble diagram
• A new pressure-parametrization unified dark fluid model
• Gravitationally influenced particle creation models and late-time cosmic acceleration
• Local Gravity Constraints and Power Law f(R) Theories
• Spatial Curvature in $f(R)$ Gravity
• Cosmological Information in the Gravitational Lensing of Pregalactic HI
• Traversable holographic dark energy wormholes constrained by astronomical observations
• Topology of large scale structure as test of modified gravity
• Study of the charged super-Chandrasekhar limiting mass white dwarfs in the $f(R,\mathcal{T})$ gravity
• Acceleration of the Universe in f(R) Gravity Models
• Observational Bounds on Modified Gravity Models
• Casimir Dark Energy, Stabilization of the Extra Dimensions and Gauss-Bonnet Term
• Disorder on the landscape
• Renormalization Group Running of Newton's G: The Static Isotropic Case
• Sounds of instability from generalized QCD ghost dark energy
• Cosmological and Solar-System Tests of f(R) Modified Gravity
• TeVeS/MOND is in harmony with gravitational redshifts in galaxy clusters
• Reconstructing cosmic acceleration from modified and non-minimal gravity: The Yang-Mills case
• The Gravitational Horizon for a Universe with Phantom Energy
• Indistinguishable Macroscopic Behaviour of Palatini Gravities and General Relativity
• Curvature Oscillations in Modified Gravity and High Energy Cosmic Rays
• Tolman-Oppenheimer-Volkoff Equations and their implications or the structures of relativistic Stars in f(T) gravity
• Tomography from the Next Generation of Cosmic Shear Experiments for Viable f(R) Models
• Group-galaxy correlations in redshift space as a probe of the growth of structure
• Symmetry of Brans-Dicke gravity as a novel solution-generating technique
• Cosmological acceleration
• Implications of non-analytical f(R) gravity at Solar-System scales
• Reconstructing f(R) Gravity from a Chaplygin Scalar Field in de Sitter Spacetimes
• Inflessence: a phenomenological model for inflationary quintessence
• More on the first-order thermodynamics of scalar-tensor and Horndeski gravity
• A stable flat universe with variable Cosmological constant in f(R,T) Gravity
• The Raychaudhuri Equation in inhomogeneous FLRW space-time : A $f(R)$-gravity model
• Combined constraints on Cardassian models from supernovae, CMB and large-scale structure observations
• Inverse problem: Reconstruction of modified gravity action in Palatini formalism by Supernova Type Ia data
• Polytropic and Chaplygin f(R)-gravity models
• Metric gravity theories and cosmology:II. Stability of a ground state in f(R) theories
• Cosmological disformal transformations to the Einstein frame and gravitational couplings with matter perturbations
• Neutron Stars in frames of $R^2$-gravity and Gravitational Waves
• Universe acceleration in modified gravities: $F(R)$ and $F(T)$ cases
• The Generalized Uncertainty Principle in f(R) Gravity for a Charged Black Hole
• Solar System tests and chameleon effect in f (R) gravity
• Signatures of Modified Gravity on the 21-cm Power Spectrum at Reionisation
• $f(Q,L_m)$ gravity, and its cosmological implications
• Nonlinearities in modified gravity cosmology I: signatures of modified gravity in the nonlinear matter power spectrum
• Cosmic evolution in f(T) gravity theory
• New rotating AdS/dS black holes in $\mathrm{f}(\mathrm{R})$ gravity
• The content of f(R) gravity
• Chaplygin gas may prevent big trip
• Bardeen Compact Stars in Modified $f(R)$ Gravity with Conformal Motion
• The Cosmology of a Universe with Spontaneously-Broken Lorentz Symmetry
• Constraints on Quintessence From Using Cosmological Data
• Superbounce and Loop Quantum Ekpyrotic Cosmologies from Modified Gravity: $F(R)$, $F(G)$ and $F(T)$ Theories
• Loop Quantum Cosmology Matter Bounce Reconstruction from $F(R)$ Gravity Using an Auxiliary Field
• Constraints on Modified Gravity from Sunyaev-Zeldovich Cluster Surveys
• Dark energy versus modified gravity: Impacts on measuring neutrino mass
• Zero Cosmological Constant from Normalized General Relativity
• Effects of CDTT Model on the Dynamical Instability of Cylindrically Symmetric Collapsing Stars
• Modified gravity with an exponential function of curvature
• Gravitational resonances on $f(R)$-brane
• Perturbations in the relaxation mechanism for a large cosmological constant
• Influence of bulk mass distribution on orbital precession of S2 star in Yukawa gravity
• What do the cosmological supernova data really tell us?
• Using newest VLT-KMOS HII Galaxies and other cosmic tracers to test the $\Lambda$CDM tension
• Gravitational Lensing Constraints on Dynamical and Coupled Dark Energy
• The generalized second law of thermodynamics for interacting $f(R)$ gravity
• Study of Charged Cylindrical Collapse in $f(\mathcal{R},\mathcal{T},\mathcal{Q})$ Gravity
• Late Time Cosmological Evolution in f(R) theories with Ordinary and Collisional Matter
• (2+1)-dimensional solutions in $F(R)$ gravity
• Imperfect fluid cosmological model in modified gravity
• Spherically Symmetric Solutions in F(R) Gravity and Gravitational Repulsion
• Cosmological models with squared trace in modified gravity
• Phase-space of flat Friedmann-Robertson-Walker models with both a scalar field coupled to matter and radiation
• Analytic Electrically Charged Black Holes in $F(R)$-ModMax Theory
• Unified $f(R)$ gravity at local scales
• Marked correlation functions in perturbation theory
• Specific neutral and charged black holes in $f(R)$ gravitational theory
• Accretion disks around a static black hole in $f(R)$ gravity
• Growth of perturbations in dark energy parametrization scenarios
• Euclid: Constraining linearly scale-independent modifications of gravity with the spectroscopic and photometric primary probes
• Stability and Space Phase Analysis in f(R) theory with Generalized Exponential model
• On generalized wormhole in the Eddington inspired Born-Infeld (EiBI) gravity
• Moment of inertia and compactness of quark stars within the context of $f(R,T,L_m)$ gravity
• Inhomogeneous viscous fluids in FRW universe
• What is needed of a scalar field if it is to unify inflation and late time acceleration ?
• Interacting Tsallis holographic dark energy in higher dimensional Cosmology
• On exponential modified gravity
• The role of curvature in the slowing down acceleration scenario
• Gravitational collapse of massless scalar field in $f(R)$ gravity
• Substructure lensing in galaxy clusters as a constraint on low-mass sterile neutrinos in tensor-vector-scalar theory: The straight arc of Abell 2390
• Reconstructing Dark Energy Potentials From Parameterized Deceleration Parameters
• The post-Minkowskian limit of f(R)-gravity
• The dynamical behavior of the Extended Holographic Dark Energy with Hubble Horizon
• Dynamical apparent horizons in inhomogeneous Brans-Dicke universes
• Spherical Collapse in Modified Newtonian Dynamics (MOND)
• Gravity with Perturbative Constraints: Dark Energy Without New Degrees of Freedom
• Baryogenesis after Hyperextended Inflation
• On the Dirac field in the Palatini form of 1/R gravity
• Pseudo-redundant vacuum energy
• Rotating black hole in $f(R)$ theory
• LRS Bianchi type-I bulk viscous cosmological models in $f(R,T)$ gravity
• Diffeomorphism Symmetry in the Lagrangian Formulation of Gravity
• Cosmological Dynamics of Modified Gravity With a Non-minimal Curvature-matter Coupling
• An analytic model for the transition from decelerated to accelerated cosmic expansion
• Revisiting The Coincidence Problem in $f(R)$ Gravitation
• Stable, Accelerating Universes in Modified Gravity
• Constraints on Dark Energy from the Observed Expansion of our Cosmic Horizon
• A preference for dynamical phantom dark energy using one-parameter model with Planck, DESI DR1 BAO and SN data
• fkPT: Constraining scale-dependent modified gravity with the full-shape galaxy power spectrum
• Interacting Holographic Dark Energy, the Present Accelerated Expansion and Black Holes
• Constraining gravity with a new precision $E_G$ estimator using Planck + SDSS BOSS
• Slice Energy in Higher Order Gravity Theories and Conformal Transformations
• Gravitational collapse in non-minimally coupled gravity: finite density singularities and the breaking of the no-hair theorem
• Cosmological Probes of Structure Growth and Tests of Gravity
• Phase Space description of Nonlocal Teleparallel Gravity
• Weak-field regime of the generalized hybrid metric-Palatini gravity
• Strange stars in $f(R)$ theories of gravity in the Palatini formalism
• New mechanism to cross the phantom divide
• Vacuum Solution of a Linear Red-Shift Based Correction in $f(R)$ Gravity
• Cyclic Magnetic Universe
• Accelerating Hilbert-Einstein universe without dynamic dark energy
• Probing for Dynamics of Dark-Energy in Mass Varying Neutrinos: Cosmic Microwave Background Radiation and Large Scale Structure
• Future constraints on the Hu-Sawicki modified gravity scenario
• Constraining a nonminimally coupled curvature-matter gravity model with ocean experiments
• $f(R)$ gravity and Tsallis holographic dark energy
• Structure formation in $f(R)$ gravity: A distinguishing probe between the dark energy and modified gravity
• Embedding of FRW Cosmology in DGP Scenario with a Non-Minimally Coupled Scalar Field on the Brane
• Cosmological model with linear equation of state parameter in f(R, Lm) gravity
• Observational tests of a two parameter power-law class modified gravity in Palatini formalism
• Acceleration in Weyl integrable spacetime
• Small Cosmological Constant from Running Gravitational Coupling
• Classical Cancellation of the Cosmological Constant Re-Considered
• An updated analysis of two classes of f(R) theories of gravity
• Constraint propagation equations of the 3+1 decomposition of f(R) gravity
• Do Solar System experiments constrain scalar-tensor gravity?
• The tension on the cosmological parameters from different observational data
• Testing gravity with gravitational wave friction and gravitational slip
• Vanishing Cosmological Constant in Modified Gauss-Bonnet Gravity with Conformal Anomaly
• Uniqueness of non-trivial spherically symmetric black hole solution in special classes of F(R) gravitational theory
• R\' enyi Holographic Dark Energy in Higher Dimension Cosmology
• Constraints on Modified Gravity from ACT and SPT
• Cosmological Constraints on the DGP braneworld model with Gamma-ray bursts
• Cosmic acceleration with bulk viscosity in an anisotropic $f(R,L_m)$ background
• Consistency Condition of Spherically Symmetric Solutions in $f(R)$ Gravity
• Black holes in modified gravity theories
• Cosmological Perturbations and the Running Cosmological Constant Model
• Five-dimensional metric $f(R)$ gravity and the accelerated universe
• On Shear-free perturbations of f(R) gravity
• Static Spherically Symmetric Solution of (R +- μ^4/R) Gravity
• Linearization of a warped $f(R)$ theory in the higher-order frame
• Constraining f(R) gravity with cross-correlation of galaxies and cosmic microwave background lensing
• f(R) Quantum Cosmology
• Curvature corrections in DGP brane cosmology
• Cosmological signature change in Cartan Gravity with dynamical symmetry breaking
• Invariant quantities of Scalar-Tensor Theories for stellar structure
• $R^2$-gravity quark stars from perturbative QCD
• Third quantization of $f(R)$-type gravity
• Born - Infeld-like modified gravity
• Lensed Cosmic Microwave Background Constraints on Post-General Relativity Parameters
• Particle Production in f(R) Gravity during Structure Formation
• Cosmological dynamics of magnetic Bianchi I in viable $f(R)$ models of gravity
• Acceleration from Modified Gravity: Lessons from Worked Examples
• Constraining models of modified gravity with the double pulsar PSR J0737-3039A/B system
• Two new approaches to the anomalous limit of Brans-Dicke to Einstein gravity
• De Sitter stability in quadratic gravity
• Exact Cosmological Solutions of $f(R)$ Theories via Hojman Symmetry
• Dynamical properties of Bianchi-I spacetimes in $f(R)$ gravity
• An expanding 4D universe in a 5D Kaluza-Klein cosmology with higher dimensional matter
• Topological phantom AdS black holes in $F(R)$ gravity
• Asymptotic Properties of a Supposedly Regular (Dirac-Born-Infeld) Modification of General Relativity
• Quintessence in the Weyl-Gauss-Bonnet model
• A Dark Energy Model in Lyra Manifold
• Multi-fluid cosmology in Einstein gravity: analytical solutions
• Number Counts and Dynamical Vacuum Cosmologies
• Modified Gravity: living without Birkhoff I. DGP
• Scaling Dark Energy
• Exploring Plane Symmetric Solutions in $f(R)$ Gravity
• Dark sector evolution in Horndeski models
• Isolating the decay rate of cosmological gravitational potential
• Power-law solutions and accelerated expansion in scalar-tensor theories
• Conformal entropy for generalised gravity theories as a consequence of horizon properties
• Classical limit of quantum gravity in an accelerating universe
• Charged Compact Stars in Extended $f(\mathcal{R},\mathcal{G},\mathcal{T})$ Gravity
• Does Planck mass run on the cosmological horizon scale?
• Environmental screening of dark matter haloes in $f(R)$ gravity
• Study of symmetry in F(R) theory of gravity
• Solar System Constraints on Scalar Tensor Theories with Non-Standard Action
• The dark side of curvature
• Rippled Cosmological Dark Matter from Damped Oscillating Newton Constant
• Cosmological Density Perturbations with a Scale-Dependent Newton's G
• Marginalized Fisher Forecast for Horndeski Dark Energy Models
• Euclid preparation. Modelling spectroscopic clustering on mildly nonlinear scales in beyond-$\Lambda$CDM models
• Black Holes with Electric and Magnetic Charges in $F(R)$ Gravity
• Universal thermodynamics in different gravity theories: Conditions for generalized second law of thermodynamics and thermodynamical equilibrium on the horizons
• Supernova, baryon acoustic oscillations, and CMB surface distance constraints on f(G) higher order gravity models
• A new approach to cosmological perturbations in f(R) models
• Interacting holographic dark energy in the scalar-Gauss-Bonnet gravity
• Cosmic acceleration and $f(R)$ theory: perturbed solution in a matter FLRW model
• Using Noether symmetries to specify f(R) gravity
• Effects of structure formation on the expansion rate of the Universe: An estimate from numerical simulations
• Withholding Potentials, Absence of Ghosts and Relationship between Minimal Dilatonic Gravity and f(R) Theories
• Non-Perturbative Yang-Mills Condensate as Dark Energy
• Solar System Constraints on a Cosmologically Viable $f(R)$ Theory
• Torsion and accelerating expansion of the universe in quadratic gravitation
• Bounds from ISW-galaxy cross-correlations on generalized covariant Galileon models
• A Modified Generalized Chaplygin Gas as the Unified Dark Matter-Dark Energy Revisited
• Prospects in Constraining the Dark Energy Potential
• Exploring the Cosmological Model in $f(R,T^{\varphi })$ Gravity with Observational Constraints
• Constraints on $\Lambda (t)$-cosmology with power law interacting dark sectors
• Interacting Holographic Generalized Chaplygin Gas in compact Kaluza-Klein cosmology
• Self-dual configurations in Abelian Higgs models with $k$-generalized gauge field dynamics
• On the stability of spherically symmetric spacetimes in metric f(R) gravity
• Investigating the physical and geometrical parameters of the cosmological models with anisotropic background
• Similarity solutions for the Wheeler-DeWitt equation in $f\left(R\right)$-cosmology
• The $k$-essence scalar field in the context of Supernova Ia Observations
• Type V singularities in non-standard cosmological backgrounds
• Cosmic Voids in Evolving Dark Sector Cosmologies: the High Redshift Universe
• Interacting holographic dark energy models: A general approach
• The Reconstruction of Constant Jerk Parameter with $f(R,T)$ Gravity in Bianchi-I spacetime
• The 1/c expansion of nonminimally coupled curvature-matter gravity model and constraints from planetary precession
• Cosmological models of generalized ghost pilgrim dark energy (GGPDE) in the gravitation theory of Saez-Ballester
• A bridge between unified cosmic history by $f(R)$-gravity and BIonic system
• Two-dimensional Lifshitz-like AdS black holes in $F(R)$ gravity
• Equilibrium configuration of perfect fluid orbiting around black holes in some classes of alternative gravity theories
• Inverse problem - reconstruction of dark energy models
• Maxwell extension of $f(R)$ gravity
• Hamiltonian perturbation theory in f(R) gravity
• Halting eternal acceleration with an effective negative cosmological constant
• Oscillatory behavior of closed isotropic models in second order gravity theory
• Null tests with Gaussian Process
• Gravitational Origin of Phantom Dark Energy and Late Cosmic Acceleration
• Relaxing a large cosmological constant in the astrophysical domain
• Gravitational Coupling and Dynamical Reduction of The Cosmological Constant
• Interacting Scalar and Electromagnetic Fields in $f(R,T)$ Theory of Gravity
• Cassini and extra force constraints to nonminimally coupled gravity with screening mechanism
• Third quantization of $f(R)$-type gravity II - General $f(R)$ case -
• Redshift space distortions in the presence of non-minimally coupled dark matter
• Dark Energy and Cosmic Speed-Up from Consistent Modified Gravity
• FLRW cosmology in Weyl-Integrable Space-Time
• f(T) Quantum Cosmology
• Bianchi type-V Transitioning model in Brans-Dicke theory with Observational Constraint
• Averaging inhomogeneities in scalar-tensor cosmology
• Transition from decelerated to accelerated cosmic expansion in braneworld universes
• Functors of actions
• Calibrating magnification bias for the $E_G$ statistic to test general relativity
• Stability analysis in Modified Non-Local Gravity
• Calculating the Hawking Temperatures of Conventional Black Holes in the f(R) Gravity Models with the RVB Method
• Holographic reconstruction of the k-essence and dilaton models
• Weak gravitational lensing by compact objects in fourth order gravity
• Accelerated expansion from braneworld models with variable vacuum energy
• Remarks on generalized scalar-tensor models of dark energy
• An attempt to add Barrow entropy in $f(R)$ gravity
• Instability of gravitational baryogenesis with fermions
• Naked Singularity in a Modified Gravity Theory
• Towards unveiling the large-scale nature of gravity with the wavelet scattering transform
• Joint Analysis of Constraints on f(R) Parametrization from Recent Cosmological Observations
• Self-accelerating solutions of scalar-tensor gravity
• Cosmological Perturbations and Quasi-Static Assumption in $f(R)$ Theories
• Cosmological effects on $f(\bar{R},\bar{T})$ gravity through a non-standard theory
• Observational Constraints on Visser's Cosmological Model
• Gravitational radiation from binary systems in $f(R)$ gravity: A semi-classical approach
• Shear-free Anisotropic Cosmological Models in f(R) Gravity
• Prospects of Probing Dark Matter Condensates with Gravitational Waves
• Bouncing cosmological models in a functional form of F(R) gravity
• Late time cosmic acceleration from natural infrared cutoff?
• Simultaneous effect of Modified Gravity and Primordial Non-Gaussianity in Large Scale Structure Observations
• Using measurements of the cosmic bulk flow to constrain $f(R)$ Gravity
• Phantom-Like Behavior of a DGP-Inspired Scalar-Gauss-Bonnet Gravity
• An extension of the cosmological standard model with a bounded Hubble expansion rate
• Anti-Newtonian cosmologies in f(R) gravity
• Magnetized cosmological model with variable deceleration parameter
• Physical vacuum as a system manifesting itself on various scales - from nuclear physics to cosmology
• Ghost dark energy with sign-changeable interaction term
• Dark Energy and Modified Scale Covariant Theory of Gravitation
• Spherically symmetric and static solutions in $f(R)$ gravity coupled with EM fields
• A primer on problems and prospects of dark energy
• The tunneling radiation of a black hole with a $f(R)$ global monopole under generalized uncertainty principle
• Non-parametric modeling of the cosmological data, base on the ${\chi }^2$ distribution
• Comments on Scalar-Tensor Representation of $f(R)$ Theories
• Interpreting the conformal cousin of the Husain-Martinez-Nunez solution
• Collapsing scenarios of K-essence generalized Vaidya spacetime under $f(\bar{R},\bar{T})$ gravity
• Linearization of a warped $f(R)$ theory in the higher-order frame II: the equation of motion approach
• Classification of the FRW universe with a cosmological constant and a perfect fluid of the equation of state $p=w\rho$
• Late-time cosmic acceleration: Dark gravity
• Phantom-like effects in asymmetric brane embedding with induced gravity and the Gauss-Bonnet term in the Bulk
• Testing theories of Gravity and Supergravity with inflation and observations of the cosmic microwave background
• Higher-order gravity in higher dimensions: Geometrical origins of four-dimensional cosmology?
• The fragmentation instability of a black hole with $f(R)$ global monopole under GUP
• Dynamical analysis of the Tsallis holographic dark energy models with event horizon as cut-off and interaction with matter
• Dark energy in thermal equilibrium with the cosmological horizon?
• Neutron Stars in f(R)-Gravity and Its Extension with a Scalar Axion Field
• The Nature of Dark Energy and Constraints on Its Hypothetical Constituents from Force Measurements
• Codimension Two Branes in Einstein-Gauss-Bonnet Gravity
• Irrotational-fluid cosmologies in fourth-order gravity
• Energy conditions in $f(Q,L_m)$ gravity
• Second-order weak lensing from modified gravity
• Constraints on a $f(R)$ gravity dark energy model with early scaling evolution
• Modified Bekenstein-Hawking system in $f(R)$ gravity
• Ricci curvature non-minimal derivative coupling cosmology with field re-scaling
• Covariant gauge invariant theory of Scalar Perturbations in $f(R)$-gravity: a brief review
• On the canonical formalism of $f(R)$-type gravity using Lie derivatives
• Functional Determinants in Higher Derivative Lagrangian Theories
• Perfect fluid solutions of Brans-Dicke and f(R)cosmology
• Testing gravity with non-Gaussianity
• Generalized Modified Gravity in Large Extra Dimensions
• Long range gravity tests and the Pioneer anomaly
• 1/R multidimensional gravity with form-fields: stabilization of extra dimensions, cosmic acceleration and domain walls
• Acceleration of a Spherical Brane-Universe
• The viable f(G) gravity models via reconstruction from the observations
• Gravitational collapse of compact stars in $f(R)=\xi R^4$ gravity
• $\gamma$ gravity: Steepness control
• N-body Simulations of $\gamma$ Gravity
• Cosmological singularity theorems for $f(R)$ gravity theories
• Testing modified gravity scenarios with direct peculiar velocities
• Dirac Cosmology and the Acceleration of the Contemporary Universe
• Modified gravity in a viscous and non-isotropic background
• On analytical solutions of f(R) modified gravity theories in FLRW cosmologies
• Constrained transit cosmological models in $f(R,L_m,T)$-gravity
• A canonical formalism of f(T)-type gravity in terms of Lie derivatives
• Notes on diffeomorphisms symmetry of $f(R)$ gravity in the cosmological context
• Constraining modified gravity scenarios with the 6dFGS and SDSS galaxy peculiar velocity datasets
• Constraining the Lattice Fluid Dark Energy from SNe Ia, BAO and OHD
• A Note on de Sitter Embedding of $f(R)$ Theories
• Strong and weak gravitational field in $R+{\mu }^4/R$ gravity
• Constraining Parameters for the Accelerating Universe in $f(R,{\mathcal{L}}_m)$ Gravity
• Flatness without CMB - the Entanglement of Spatial Curvature and Dark Energy Equation of State
• Precise peculiar velocities from gravitational waves accompanied by electromagnetic signals and cosmological applications
• De Sitter cosmology from Gauss-Bonnet dark energy with quantum effects
• Three-dimensional accelerating AdS black holes in $F(R)$ gravity
• Gravitational instability in oscillating background
• Reconstructing modified gravity with holographic vacuum energy density
• 1/R Correction to Gravity in the Early Universe
• Local stability of self-gravitating disks in $f(R)$ gravity
• Observational constraint on dynamical evolution of dark energy
• The Cosmology of Asymmetric Brane Modified Gravity
• On Friedmann-Lema\^ıtre-Robertson-Walker cosmologies in non-standard gravity
• Spherically symmetric black holes in metric gravity
• F(R) gravity in purely affine formulation
• Pseudo generalized Ricci-recurrent spacetimes and modified gravity
• Instantaneous interaction in massive gravity
• Scalar-tensor extension of the $\Lambda$CDM model
• Interacting dark energy model in the brane scenario: A Dynamical System Analysis
• Some Adventures in the Search for a Modified Gravity Explanation for Cosmic Acceleration
• Complementarity of Future Dark Energy Probes
• The Bianchi type-V Dark Energy Cosmology in Self Interacting Brans Dicke Theory of Gravity
• Hollowgraphy Driven Holography: Black Hole with Vanishing Volume Interior
• Singularity problem in f(R) model with non-minimal coupling
• Does Dirac-Born-Infeld Modification Of Quadratic Theories Really Matter?
• Quasilocal mass in scalar-tensor gravity: spherical symmetry
• New cosmological solutions in hybrid metric-Palatini gravity from dynamical symmetries
• Kerr-scalaron metric and astronomical consequences near the Galactic Center black hole
• Mass varying dark matter in effective GCG scenarios
• Black Hole Dynamics in Power-law based Metric $f(R)$ Gravity
• Pseudo generalized Ricci-recurrent spacetimes with certain applications to modified gravity
• Growth of Linear Perturbations in a Universe with Superfluid Dark Matter
• Investigation of Bouncing Universe and Phantom Crossing in Modified Gravity Coupled with Weyl Tensor and its Reconstruction
• Turnaround physics beyond spherical symmetry
• Asymptotically Weyl-Invariant Gravity
• Cosmological Model with Cosmic transit behaviour in Brans-Dicke Theory
• Qualitative evolution in f(R) cosmologies
• Observational constraints on the unified dark matter and dark energy model based on the quark bag model
• Dark Energy in the DESI Era: A Brief Review of Evidence, Beyond-$\Lambda$CDM Interpretations, and Tensions
• Constraining $f(R)$ Theories with Temporal Variation of Fine Structure Constant
• Structure formation and CMBR anisotropy spectrum in the inflessence model
• Cosmic Acceleration and Geodesic Deviation in Chameleon Scalar Field Model
• Generalized Ghost Dark Energy in DGP Model
• Palatini $f(\mathcal{R},{\mathcal{L}}_m,{\mathcal{R}}_{\mu \nu }{T}^{\mu \nu })$ gravity and its Born-Infeld semblance
• Weak-lensing tunnel voids in simulated light cones: A new pipeline to investigate modified gravity and massive neutrinos signatures
• Classification of Einstein equations with cosmological constant in warped product space-time
• Reconstruction of $f(R)$ lagrangian from a massive scalar field
• Logarithmic corrected $f(R)$ gravitational model and swampland conjectures
• Quasi-linear static solutions in massive gravity
• Symmetries of Differential equations and Applications in Relativistic Physics
• Constraining primordial black hole masses through $f(R)$ gravity scalarons in Big Bang Nucleosynthesis
• Dark Energy and Extending the Geodesic Equations of Motion: Its Construction and Experimental Constraints
• Type V singularities with inhomogeneous equations of state
• The coincidence problem in $f(R)$ gravity models
• Viability of Arctan Model of f(R) Gravity for Late-time Cosmology
• Inflation in non-local hybrid metric-Palatini gravity
• Gravitational Collapse in Repulsive $R+{\mu }^4/R$ Gravity
• Brane cosmology in the Horava-Witten heterotic M-Theory on $S^1/Z_2$
• Restricted f(R) Gravity and Its Cosmological Implications
• Anisotropic Extra Dimensions
• Background-dependent and classical correspondences between $f(Q)$ and $f(T)$ gravity
• Cosmic Evolution with Early and Late Acceleration Inspired by Dual Nature of the Ricci Scalar Curvature
• Gravi-Weak Unification and the Black-Hole-Hedgehog's Solution with Magnetic Field Contribution
• Modified Gravity Models Admitting Second Order Equations of Motion
• Inflationary Cosmology via Quantum Corrections in M-theory
• Cosmic scenarios in $f(R)$ gravity: a complete evolution
• Thermodynamics of Non-Commutative Scalar-Tensor-Vector Gravity Black holes
• Chasing Unbiased Spectra of the Universe
• Consistency of $f(R)$ gravity models around solar polytropes
• Non-Gaussianity of the density distribution in accelerating universes
• Primordial Black Hole Pair Creation Probability in Modified Gravitational Theory
• Probability for Primordial Black Holes Pair in 1/R Gravity
• Maximal symmetry and metric-affine f(R) gravity
• Teleparallel dark energy in a nonflat universe
• Modification to the Luminosity Distance Redshift Relation in Modified Gravity Theories
• Bulk scalar field in brane-worlds with induced gravity inspired by the $\mathcal{L}(R)$ term
• Prospects of probing dark energy with eLISA: Standard versus null diagnostics
• The initial value problem of scalar-tensor theories of gravity
• A New Exponential Gravity
• Scalar tachyonic instabilities in gravitational backgrounds: Existence and growth rate
• Interacting and Non-interacting Reńyi Holographic Dark Energy Models in DGP Braneworld
• Growth of cosmic perturbations in the modified $f(R,T)$ gravity
• Intensity mapping of post-reionization 21-cm signal and its cross-correlations as a probe of $f(R)$ gravity
• Calibrating galaxy formation effects in galactic tests of fundamental physics
• Modeling dark energy through an Ising fluid with network interactions
• Measurement of the Weyl potential evolution from the first three years of Dark Energy Survey data
• Constraining the runaway dilaton and quintessential dark energy
• The Dark Side of the Universe
• Hawking radiation and thermodynamics of dynamical black holes in phantom dominated universe
• Tests of gravitational scalar polarization and constraints of chameleon $f(R)$ gravity from comprehensive analysis of binary pulsars
• Horizons and singularity in Clifton's spherical solution of f(R) vacuum
• Analytical Stellar Models of Neutron Stars in Teleparallel Gravity
• Dynamical systems analysis of a cosmological model with interacting Umami Chaplygin fluid in adiabatic particle creation mechanism: Some bouncing features
• Tidal deformability of neutron stars with exotic particles within a density dependent relativistic mean field model in R-squared gravity
• Raychaudhuri-based reconstruction of anisotropic Einstein-Maxwell equation in 1+3 covariant formalism of $f(R)$-gravity
• A Study of Universal Thermodynamics in Massive Gravity: Modified Entropy on the Horizons
• Realizing the phantom-divide crossing with vector and scalar fields
• Impulsive gravitational waves of massless particles in extended theories of gravity
• Exploring the deviation of cosmological constant by a generalized pressure dark energy model
• Probing Strong Field $f(R)$ Gravity and Ultra-Dense Matter with the Structure and Thermal Evolution of Neutron Stars
• Modified Gravity with Nonminimal Curvature-Matter Couplings: A Framework for Gravitationally Induced Particle Creation
• Gödel-type universes in energy-momentum-squared gravity
• Modified Theories of Gravity: Traversable Wormholes
• Phantom Mimicry on the Normal Branch of a DGP-inspired Braneworld Scenario with Curvature Effect
• $f(R)$ Gravity and Crossing the Phantom Divide Barrier
• Antimatter Gravity and the Results of the ALPHA-g Experiment
• Perturbation in an interacting dark universe
• Naturalness and stability of the generalized Chaplygin gas in the seesaw cosmon scenario
• New analytic solutions in $f\left(R\right)$-Cosmology from Painlevé analysis
• Modified gravity with disappearing cosmological constant
• Study of Some Cosmological Parameters for Interacting New Holographic Dark Energy Model in f(T) Gravity
• Cylindrically symmetric and plane-symmetric solutions in $f(R)$ theory via Noether symmetries
• Behavior of $F(R)$ gravity around a crossing of the phantom divide
• Reconstructing the f(R) gravity from the holographic principle
• Modified Einstein-Cartan Gravity and its Implications for Cosmology
• Non-minimal scalar-tensor theories
• Non linear equation of state and effective phantom divide in brane models
• The Effect of Cosmological Background Dynamics on the Spherical Collapse in MOND
• Quantum Yang-Mills Condensate Dark Energy Models
• Constraining modified growth patterns with tomographic surveys
• Black Hole Entropy and Boundary Conditions
• The connection between halo concentrations and assembly histories: a probe of gravity?
• Impact of projective curvature tensor in $f\left(R,G\right)$, $f\left(R,T\right)$ and $f\left(R,L_m\right)$-gravity
• Tsunamis and Ripples: Effects of Scalar Waves on Screening in the Milky Way
• Gravitational Coupling and the Cosmological Constant
• Beyond self-acceleration: force- and fluid-acceleration
• $f(R)$ gravity in the solar system and cosmological scalarons
• Towards Dark Energy from String-Theory
• Time dependent dark energy and the thermodynamics of many-body systems
• On the cosmological viability of the Hu-Sawicki type modified induced gravity
• Cosmological Models in Modified f(R) Gravity Theories
• Dynamical Systems Analysis of $f(R,L_m)$ Gravity Model
• Quasi-Topological Magnetic Brane coupled to Nonlinear Electrodynamics
• Inflation constraints for classes of f(R) models
• Modified Gravity in the framework of holographic dark energy
• Crossing Phantom Boundary in $f(R)$ Modified Gravity : Jordan Frame vs Einstein Frame
• Does Unruh radiation accelerate the universe? A novel approach to the cosmic acceleration
• Quasilocal mass and multipole expansion in scalar-tensor gravity
• Conformal transformation route to gravity's rainbow
• Classical and quantum cosmology in $f(T)$-gravity theory: A Noether symmetry approach
• Exact charged black hole solutions in D-dimensions in f(R) gravity
• Investigating the compatibility of exact solutions in Weyl-type $f(Q,T)$ gravity with observational data
• Different approaches to unveil biomolecule configurations and their mutual interactions
• Direct Determination of Expansion History Using Redshift Distortions
• Scalar-tensor cosmologies in a minisuperspace formulation: a case study
• Dark Energy in vector-tensor theories of gravity
• Domain Wall Bianchi Type $V{I}_0$ Universe in $f(R,T)$ Gravity
• Construction of f(R) Gravity Models
• Cosmological wheel or the arrow of time: A classical versus quantum perspective of gravity
• Modified Gravity and Large Scale Flows, a Review
• Stellar structure of quark stars in a modified Starobinsky gravity
• Why $w\ne -1$? Anthropic Selection in a $\Lambda$ + Axion Dark Energy Model
• Acceleration and Deceleration in Curvature Induced Phantom Model of the Late and Future Universe, Cosmic Collapse as Well as its Quantum Escape
• Cosmological dynamics with modified induced gravity on the normal DGP branch
• On Nash theory of gravity with matter contents
• New time-dependent solutions of viable Horndeski gravity
• Enlarged Transformation Group: Star Models,Dark Matter Halos and Solar System Dynamics
• Friedmann-like equations for High Energy Area of Universe
• Spontaneously Induced General Relativity: Holographic Interior for Reissner-Nordstrom Exterior
• A Note on Gravitational Memory in F(R)-theories and their Equivalent Scalar-Tensor Theories
• Cosmic acceleration and the challenge of modifying gravity
• f(R) cosmological solutions with varying speed of light
• Charged spherically symmetric Taub-NUT black hole solutions in $f(R)$ gravity
• Implications of $f(R)$ gravity on late-time cosmic structure growth through a complete description of density perturbations
• Brans-Dicke analogue of the Roberts geometry
• Notes on f(R) Theories of Gravity
• A Viable model for modified gravity
• Constraining Scalar-Tensor gravity models by S2 star orbits around the Galactic Center
• 3D gravity and non-linear cosmology
• Chameleon Effects on Small Scale Structure and the Baryonic Jeans Mass
• Dark Energy and CMB
• Scalar Cosmological Perturbations in M-theory with Higher Derivative Corrections
• A new approach to modified-gravity models
• Breaking the cosmological invariance of the dark matter halos shape as a new probe of modified gravity
• Particle mixing as possible explanation of the dark energy conundrum
• The Power Spectrum Of Gravitational Waves In Anisotropic Universe
• On Pseudo $B$-symmetric spacetimes and $f(\mathcal{R})$ gravity
• Closed String Tachyon Driving $f(R)$ Cosmology
• Cosmological and astrophysical applications of modified theories of gravity
• $\Lambda$CDM without cosmological constant
• Improving cosmological constraints via galaxy intrinsic alignment in full-shape analysis
• Generalized Second Law of Thermodynamics on the Event Horizon for Interacting Dark Energy
• Cosmic magnetic fields and dark energy in extended electromagnetism
• The Cosmological Constant as a Function of Extrinsic Curvature and Spatial Curvature
• Surface configuration in $R+{\mu }^4/R$ gravity
• Evolution of the horizons for dark energy universe
• Correspondence between modified gravity and 5D Ricci-flat cosmologies
• The Compactification Problems of Additional Dimensions in Multidimensional Cosmological Theories
• Thermodynamics, Phase Transitions, and Geodesic Structure of F(R)-Phantom Banados-Teitelboim-Zanelli (BTZ) Black Holes
• Dynamical analysis of $k$-essence cosmology in the light of Supernova Ia observations
• Globally Stable Dark Energy in $F(R)$ Gravity
• Gravastars in a Non-minimally Coupled Gravity with Electromagnetism
• Late-Time Cosmic Acceleration in Ricci-Gauss-Bonnet Gravity via Gradient Descent Optimization
• Spherical Collapse in Modified Gravity Theories
• Observational Constraints and Geometric Diagnostics of Barboza-Alcaniz and Logarithmic Dark Energy Parametrizations
• Cosmic Expansion via Axion-Induced Quintessence
• The Fate of the Accelerating Universe
• Ostrogradsky instability and Born-Infeld modified cosmology in Palatini formalism
• Density perturbation and cosmological evolution in the presence of magnetic field in $f(R)$ gravity models
• Braneworld wormholes supported by astrophysical observations
• Thermodynamic geometric analysis of RN black holes under f(R) gravity
• Cosmological Perturbations via Quantum Corrections in M-theory
• Cosmological solutions of Tensor-Vector theories of gravity with varying the space-time-matter coupling constant
• Bouncing Cosmologies in modified gravity with space time torsion
• Energy Conditions in Palatini Approach to Modified $f(R)$ Gravity
• A perturbative approach for the study of compatibility between nonminimally coupled gravity and Solar System experiments
• $\Lambda$CDM, $\Lambda$DGP and extended phantom-like cosmologies
• Equivalence of two solutions of physical massive gravity
• Hamilton-Jacobi formalism for Generalized Chaplygin Gas models
• The creation of radiation and the relic of inflaton potential
• Quantum Quintom Cosmology
• Vector mesons from a holographic QCD model in $f(R)$-dilaton gravity
• Perturbations In Some Dark Energy Models
• The holographic bound in the scalar-tensor and $f(R)$ gravities
• Matter growth in extended $\Lambda$CDM cosmology
• Revised spherically symmetric solutions of $R+\epsilon /R$ gravity
• Long distance modifications of gravity in four dimensions
• On inflationary parameters in scalar-tensor theories
• Linearized Treatment of Scalar perturbations in the Asymptotic Cosmological Model
• The evolution of universe in the two-scalar theory
• The instability of a black hole with $f(R)$ global monopole under extended uncertainty principle
• Comparing $f(R)$ modified gravity and noncommutative geometry in the context of dark matter and traversable wormholes: a survey
• Calculating the Hawking Temperatures of Kerr-Newman Black Holes in the f(R) Gravity Models with the RVB Method
• Accelerating electrically charged ModMax black hole solutions in $F(R)$ gravity
• Embedding black holes and other inhomogeneities in the universe in various theories of gravity: a short review