Bouncing Universes in String-inspired Gravity

Abstract

We consider the effects on cosmology of higher-derivative modifications of (effective) gravity that make it asymptotically free without introducing ghosts. The weakening of gravity at short distances allows pressure to prevent the singularity, producing a solution with contraction preceding expansion.

arXiv comment28 pages, 2 figures; v2: added references

References in corpus (49)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• The phantom menaced: constraints on low-energy effective ghosts
• From Big Crunch to Big Bang
• The Cosmology of Generalized Modified Gravity Models
• Inflationary spacetimes are not past-complete
• From the Big Bang Theory to the Theory of a Stationary Universe
• The Confrontation between General Relativity and Experiment
• On Physical Equivalence between Nonlinear Gravity Theories
• Extended Gravity Theories and the Einstein-Hilbert Action
• The dS/CFT Correspondence and the Big Smash
• Towards a non-singular pre-big bang cosmology
• A Cosmological Theory without Singularities
• Quintessence, super-quintessence and observable quantities in Brans-Dicke and non-minimally coupled theories
• Instability of Spacelike and Null Orbifold Singularities
• On singularities of spherically symmetric backgrounds in string theory
• Adiabatic and Isocurvature Perturbations for Multifield Generalized Einstein Models
• Fluctuations of the Gravitational Constant in the Inflationary Brans-Dicke Cosmology
• Cosmological perturbations from multi-field inflation in generalized Einstein theories
• Generalized Gravity and a Ghost
• From Big Bang to Big Crunch and Beyond
• One-Loop Superstring Cosmology and the Non-Singular Universe
• The Behaviour Of Cosmological Models With Varying-G
• Oscillatory Universes in Loop Quantum Cosmology and Initial Conditions for Inflation
• String Propagation in the Presence of Cosmological Singularities
• On the instability of 3d null singularities
• Singularities in Inflationary Cosmology: A Review
• Ghost Constraints on Modified Gravity
• Quantum Fields in a Big Crunch/Big Bang Spacetime
• Cosmological Spacetimes from Negative Tension Brane Backgrounds
• Extra Dimensions and Inflation
• The radiation-matter transition in Jordan-Brans-Dicke theory
• Nonsingular Dilaton Cosmology in the String Frame
• Linear Regge trajectories from worldsheet lattice parton field theory
• Closed Strings in Misner Space: Cosmological Production of Winding Strings
• Cornering Solar Radiative-Zone Fluctuations with KamLAND and SNO Salt
• Resolution of Cosmological Singularities
• Nonsingular Dilaton Cosmology
• AdS and stabilized extra dimensions in multidimensional gravitational models with nonlinear scalar curvature terms 1/R and R^4
• A dynamical stabilization of the radion potential
• Radion Cosmology in Theories with Universal Extra Dimensions
• An Exact String Theory Model of Closed Time-Like Curves and Cosmological Singularities
• Brans-Dicke brane cosmology
• Coupled Inflation and Brane Gases
• A Note on Brane Inflation
• Conditions for Successful Extended Inflation
• The Taming of Closed Time-like Curves
• Extended Inflation with an Exponential Potential
• Instantons from Low Energy String Actions
• Preheating in Generalized Einstein Theories

Cited by in corpus (376)

• Modified Gravity and Cosmology
• f(T) teleparallel gravity and cosmology
• Beyond the Cosmological Standard Model
• Quintom Cosmology: Theoretical implications and observations
• Towards singularity and ghost free theories of gravity
• Super-renormalizable Quantum Gravity
• Avoiding Dark Energy with 1/R Modifications of Gravity
• Matter Bounce Cosmology with the f(T) Gravity
• Towards a Nonsingular Bouncing Cosmology
• Nonlocal Cosmology
• Bouncing Cosmologies: Progress and Problems
• Notes on non-singular models of black holes
• Cosmology with the Laser Interferometer Space Antenna
• A Critical Review of Classical Bouncing Cosmologies
• Matter Bounce in Horava-Lifshitz Cosmology
• Particle physics models of inflation and curvaton scenarios
• Bouncing Universe with Quintom Matter
• Bounce cosmology from $F(R)$ gravity and $F(R)$ bigravity
• Cosmic phase transitions: their applications and experimental signatures
• Towards a Resolution of the Cosmological Singularity in Non-local Higher Derivative Theories of Gravity
• A Nonsingular Cosmology with a Scale-Invariant Spectrum of Cosmological Perturbations from Lee-Wick Theory
• Locality & Entanglement in Table-Top Testing of the Quantum Nature of Linearized Gravity
• Bouncing Galileon Cosmologies
• Quadratic Gravity
• Bouncing cosmology in modified Gauss-Bonnet gravity
• Occurrence of exact $R^2$ inflation in non-local UV-complete gravity
• Dynamics of Nonlocal Cosmology
• A Cosmological Super-Bounce
• Classical properties of non-local, ghost- and singularity-free gravity
• Higher derivative theories with constraints : Exorcising Ostrogradski's Ghost
• Localization of nonlocal theories
• Non-singular cosmology in a model of non-relativistic gravity
• Non-perturbative Gravity, Hagedorn Bounce & CMB
• Dynamics with Infinitely Many Derivatives: The Initial Value Problem
• Cosmology without inflation
• A Matter Bounce By Means of Ghost Condensation
• On Perturbations of Quintom Bounce
• Reconstructing the Distortion Function for Nonlocal Cosmology
• Route to nonlocal cosmology
• The Matter Bounce Curvaton Scenario
• Nonlocal Models of Cosmic Acceleration
• Resolving Spacetime Singularities within Asymptotic Safety
• Agravity up to infinite energy
• Stability of the Einstein static Universe in $f(R,T)$ gravity
• Newtonian limit of nonlocal cosmology
• Behavior of the Newtonian potential for ghost-free gravity and singularity-free gravity
• Matter creation in a nonsingular bouncing cosmology
• Non-Gaussianity in a Matter Bounce
• Towards Anisotropy-Free and Non-Singular Bounce Cosmology with Scale-invariant Perturbations
• p-adic Inflation
• Cosmological bouncing solutions in f(T,B) gravity
• Mechanism for the quantum natured gravitons to entangle masses
• Head-on collision of ultrarelativistic particles in ghost-free theories of gravity
• The spectrum of symmetric teleparallel gravity
• Consistent Higher Derivative Gravitational theories with stable de Sitter and Anti-de Sitter Backgrounds
• Duality Invariant Cosmology to all Orders in ${\alpha }^{\prime }$
• Observational Viability and Stability of Nonlocal Cosmology
• Precision Gravity Tests and the Einstein Equivalence Principle
• Inflation in (Super-)renormalizable Gravity
• Non-singular bounce scenarios in loop quantum cosmology and the effective field description
• Terminating black holes in asymptotically free quantum gravity
• Bouncing cosmological solutions from f(R,T) gravity
• Evolution of Metric Perturbations in Quintom Bounce model
• Nonlocal quantum gravity and M-theory
• Nonlocal gravity and the diffusion equation
• Large Nongaussianity from Nonlocal Inflation
• Towards LHC Physics with Non-local Standard Model
• Some aspects of generalized modified gravity models
• Dynamics in Nonlocal Cosmological Models Derived from String Field Theory
• On bouncing solutions in non-local gravity
• Bounce and cyclic cosmology in extended nonlinear massive gravity
• Super-renormalizable or finite completion of the Starobinsky theory
• Thermal Duality and Hagedorn Transition from p-adic Strings
• Preheating a bouncing universe
• Do massive compact objects without event horizon exist in infinite derivative gravity?
• A $\Lambda$CDM bounce scenario
• Structure formation in a nonlocally modified gravity model
• On Newtonian singularities in higher derivative gravity models
• Shadow of noncommutative geometry inspired black hole
• Cosmological tachyon from cubic string field theory
• The gravitational field of static p-branes in linearized ghost-free gravity
• Non-local SFT Tachyon and Cosmology
• Higher Derivative Gravity and Conformal Gravity From Bimetric and Partially Massless Bimetric Theory
• DHOST Bounce
• Conformally-flat, non-singular static metric in infinite derivative gravity
• $R^2$ inflation to probe non-perturbative quantum gravity
• De Sitter Universe in Nonlocal Gravity
• Evolution of cosmological perturbations and the production of non-Gaussianities through a nonsingular bounce: Indications for a no-go theorem in single field matter bounce cosmologies
• Multifractional theories: an unconventional review
• Fading Gravity and Self-Inflation
• Non-Local Gravity Cosmology: an Overview
• Cosmological dynamics and dark energy from non-local infrared modifications of gravity
• Effective field theory of weakly coupled inflationary models
• Accelerated Cosmological Models in Modified Gravity tested by distant Supernovae SNIa data
• Parity-Violating Gravity and GW170817 in Non-Riemannian Cosmology
• Scale-Invariant Quadratic Gravity and Inflation in the Palatini Formalism
• Towards nonsingular rotating compact object in ghost-free infinite derivative gravity
• The Cosmology of Interacting Spin-2 Fields
• Thermal Fluctuations and Bouncing Cosmologies
• Diffusion in multiscale spacetimes
• Diffusing non-local inflation: Solving the field equations as an initial value problem
• Qudits for Witnessing Quantum Gravity Induced Entanglement of Masses Under Decoherence
• Non-singular metric for an electrically charged point-source in ghost-free infinite derivative gravity
• Changing the prior: absolute neutrino mass constraints in nonlocal gravity
• Towards reconstructing the quantum effective action of gravity
• Neutrino oscillations in extended theories of gravity
• A New Formulation of the Initial Value Problem for Nonlocal Theories
• Predictions for Nongaussianity from Nonlocal Inflation
• Schwarzschild $1/r$-singularity is not permissible in ghost free quadratic curvature infinite derivative gravity
• Cyclic cosmology from Lagrange-multiplier modified gravity
• On Higher Order Gravities, Their Analogy to GR, and Dimensional Dependent Version of Duff's Trace Anomaly Relation
• Improving resilience of the Quantum Gravity Induced Entanglement of Masses (QGEM) to decoherence using 3 superpositions
• Gravitational Waves from Fundamental Axion Dynamics
• Inflation with a Negative Cosmological Constant
• Attraction towards an inflection point inflation
• Cosmology in modified $f(R,T)$-gravity
• More on the Spectrum of Perturbations in String Gas Cosmology
• Super-accelerating bouncing cosmology in asymptotically-free non-local gravity
• Nonlocal star as a blackhole mimicker
• Newton's constant in f(R,R_{μν}R^{μν},\Box R) theories of gravity and constraints from BBN
• Stretching the Inflaton Potential with Kinetic Energy
• Transmutation of nonlocal scale in infinite derivative field theories
• Dimensional flow in discrete quantum geometries
• Collider Signals of Gravitational Fixed Points
• On avoiding Ostrogradski instabilities within Asymptotic Safety
• On the Stability of Infinite Derivative Abelian Higgs
• Exact solutions and spacetime singularities in nonlocal gravity
• On deformations of Ashtekar's constraint algebra
• Field equations and cosmology for a class of nonlocal metric models of MOND
• Wald's gravitational entropy for ghost-free, infinite derivative theories of Gravity
• The cosmological BCS mechanism and the Big Bang Singularity
• Generalized ghost-free propagators in nonlocal field theories
• Effective delta sources and regularity in higher-derivative and ghost-free gravity
• Thermodynamics and Cosmological Constant of Non-Local Field Theories from p-Adic Strings
• Nonlinear stability in nonlocal gravity
• Processing of Cosmological Perturbations in a Cyclic Cosmology
• Multi-Scalar-Tensor Equivalents for Modified Gravitational Actions
• Cosmological Solutions of a Nonlocal Model with a Perfect Fluid
• Probing the parameter space for an MSSM inflation and the neutralino dark matter
• A solution to the anisotropy problem in bouncing cosmologies
• Non-Gaussianities and tensor-to-scalar ratio in non-local $R^2$-like inflation
• Reconstruction of Scalar Potentials in Modified Gravity Models
• Bouncing and emergent cosmologies from ADM RG flows
• Cosmological perturbations and stability of nonsingular cosmologies with limiting curvature
• Non-singular string cosmology via ${\alpha }^{\prime }$ corrections
• Analytic infinite derivative gravity, $R^2$-like inflation, quantum gravity and CMB
• Superstring-inspired supergravity as the universal source of inflation and quintessence
• Running of the scalar spectral index in bouncing cosmologies
• Mesoscopic Interference for Metric and Curvature (MIMAC) & Gravitational Wave Detection
• Implications of purely classical gravity for inflationary tensor modes
• Dynamics in nonlocal linear models in the Friedmann-Robertson-Walker metric
• Stability of Schwarzschild singularity in non-local gravity
• Casimir effect in quadratic theories of gravity
• Black supernovae and black holes in non-local gravity
• Bounce cosmology in generalized modified gravities
• Quantum aspects of chaos and complexity from bouncing cosmology: A study with two-mode single field squeezed state formalism
• Non-local gravity in D-dimensions: Propagator, entropy and bouncing Cosmology
• Entanglement Witness for the Weak Equivalence Principle
• Entanglement based tomography to probe new macroscopic forces
• Cosmological perturbations in SFT inspired non-local scalar field models
• Precursor of Inflation
• Wiggles in the cosmic microwave background radiation: echoes from non-singular cyclic-inflation
• Radiation from an emitter in the ghost free scalar theory
• Rotating metric in Non-Singular Infinite Derivative Theories of Gravity
• Pre-inflationary primordial perturbations
• Cosmological perturbations in non-local higher-derivative gravity
• $pp$-waves as exact solutions to ghost-free infinite derivative gravity
• Super-Planckian excursions of the inflaton and quantum corrections
• Ultrarelativistic spinning objects in non-local ghost-free gravity
• Analysis of a regular black hole in Verlinde's gravity
• Nonlocal generalization of Galilean theories and gravity
• Quantum entanglement of masses with non-local gravitational interaction
• A Radiation Bounce from the Lee-Wick Construction?
• Localization of nonlocal cosmological models with quadratic potentials in the case of double roots
• Cosmological Perturbations on a Bouncing Brane
• Cosmology of the Spinor Emergent Universe and Scale-invariant Perturbations
• Reconsidering the Ostrogradsky theorem: Higher-derivatives Lagrangians, Ghosts and Degeneracy
• Geodesic completeness and homogeneity condition for cosmic inflation
• Dirac-Bergmann analysis and Degrees of Freedom of Coincident $f(Q)$-gravity
• Analysis of scalar perturbations in cosmological models with a non-local scalar field
• Weak Field Limit of Infinite Derivative Gravity
• Bouncing Palatini cosmologies and their perturbations
• Cosmological Perturbations Across an S-brane
• Nonlocal Metric Realizations of MOND
• Impulsive waves in ghost free infinite derivative gravity in anti-de Sitter spacetime
• Fermi-bounce cosmology and the fermion curvaton mechanism
• Nonlocality amplifies echoes
• Relaxation of experimental parameters in a Quantum-Gravity Induced Entanglement of Masses Protocol using electromagnetic screening
• Revival of the Deser-Woodard nonlocal gravity model: Comparison of the original nonlocal form and a localized formulation
• Geometric Precipices in String Cosmology
• NUT charge in linearized infinite derivative gravity
• Determination of Angle of Light Deflection in Higher-Derivative Gravity Theories
• Higher-order regularity in local and nonlocal quantum gravity
• Nonlocal gravity with worldline inversion symmetry
• Generalised Boundary Terms for Higher Derivative Theories of Gravity
• Distinguishing Jordan and Einstein frames in gravity through entanglement
• Higher time derivatives in effective equations of canonical quantum systems
• A Caveat on Building Nonlocal Models of Cosmology
• Possible evolution of a bouncing universe in cosmological models with non-minimally coupled scalar fields
• Bounce and cyclic cosmology in new gravitational scalar-tensor theories
• Cyclic Inflation
• Conceptual Problems of Inflationary Cosmology and a New Approach to Cosmological Structure Formation
• Black-hole stability in non-local gravity
• Nonlocal Newtonian Cosmology
• Unconventional Cosmology
• Constraining $F(R)$ bouncing cosmologies with primordial black holes
• Thermodynamics of String Field Theory Motivated Nonlocal Models
• The fate of Schwarzschild-de Sitter Black Holes in $f(R)$ gravity
• de Sitter, ${\alpha }^{\prime }$-Corrections & Duality Invariant Cosmology
• Dynamics and Stability of Light-Like Tachyon Condensation
• Towards A Nonsingular Tachyonic Big Crunch
• Emergent universe scenario and the low CMB multipoles
• Smoking guns of a bounce in modified theories of gravity through the spectrum of the gravitational waves
• Defocusing of Null Rays in Infinite Derivative Gravity
• Cosmology at the top of the ${\alpha }^{\prime }$ tower
• Non-local Non-Abelian Gauge Theory: Conformal Invariance and $\beta$-function
• Bouncing and cyclic string gas cosmologies
• Implications of a Simpson-Visser solution in Verlinde's framework
• Cosmological models in Weyl geometrical scalar-tensor theory
• Amplification of Curvature Perturbations in Cyclic Cosmology
• Towards resolution of anisotropic cosmological singularity in infinite derivative gravity
• Ghost-free modification of the Polyakov action and Hawking radiation
• Bounce and cyclic cosmology in weakly broken galileon theories
• Non-singular bounce transitions in the multiverse
• Non-singular and ghost-free infinite derivative gravity with torsion
• Arrow of Time in String Theory
• Energy Conditions in Non-local Gravity
• Obviating PBH overproduction for SIGWs generated by Pulsar Timing Arrays in loop corrected EFT of bounce
• String-Inspired Infinite-Derivative Theories of Gravity: A Brief Overview
• Confinement and Renormalization Group Equations in String-inspired Non-local Gauge Theories
• Exact solutions of non-local gravity in a class of almost universal spacetimes
• Quantum spectral dimension in quantum field theory
• UV Completion on the Worldline
• On Modified Gravity
• On the contour prescriptions in string-inspired nonlocal field theories
• Angle deficit & non-local gravitoelectromagnetism around a slowly spinning cosmic string
• Nonlocal quantum field theory without acausality and nonunitarity at quantum level: is SUSY the key?
• UV completion of the Starobinsky model, tensor-to-scalar ratio, and constraints on non-locality
• Parity violation in pre-inflationary bounce
• Smooth Initial Conditions from Weak Gravity
• Cosmological Solutions in Nonlocal Models
• Perturbations in higher derivative gravity beyond maximally symmetric spacetimes
• Can the Big Bang Singularity be avoided by a single scalar field?
• Mass Gap in Infinite Derivative Non-local Higgs: Dyson-Schwinger Approach
• Evading the theoretical no-go theorem for nonsingular bounces in Horndeski/Galileon cosmology
• An anisotropic bouncing universe in non-local gravity
• Stability of Hyperbolic and Matter-Dominated Bounce Cosmologies From F(R,G) Modified Gravity at Late Evolution Stages
• Addressing Cosmological Tensions by Non-Local Gravity
• Light bending by a slowly rotating source in quadratic theories of gravity
• Nonlocal N=1 Supersymmetry
• Higgs Mechanism in Nonlocal Field Theories
• Scalar Perturbations Through Cycles
• Singularities in Spherically Symmetric Solutions with Limited Curvature Invariants
• The Cosmological Slingshot Scenario: A Stringy Early Times Universe
• $f(T)$ cosmology: From Pseudo-Bang to Pseudo-Rip
• Some Cosmological Solutions of a New Nonlocal Gravity Model
• Can nonlocal gravity really explain dark energy?
• Retarded field of a uniformly accelerated source in non-local scalar field theory
• Spherically symmetric black holes in the limiting curvature theory of gravity
• Regularized-Renormalized-Resummed loop corrected power spectrum of non-singular bounce with Primordial Black Hole formation
• Stable, non-singular bouncing universe with only a scalar mode
• Scalar Dark Matter Probes the Scale of Non-locality
• Hamiltonian for scalar field model of infinite derivative gravity
• Periodic Cosmological Evolutions of Equation of State for Dark Energy
• Cosmological solutions in modified gravity with monomial nonlocality
• Non-linear vector perturbations in a contracting universe
• Non-local Lagrangian Mechanics: Noether theorem and Hamiltonian formalism
• Primordial Density Perturbations and Reheating from Gravity
• $f(\mathcal{G},\text{T})$ Gravity Bouncing Universe with Cosmological Parameters
• Phantom Behavior Bounce with Tachyon and Non-minimal Derivative Coupling
• Fluctuations through a Vibrating Bounce
• Strongly Coupled String-inspired Infinite Derivative Non-local Yang-Mills: Diluted Mass Gap
• Unitarization and Causalization of Non-local quantum field theories by Classicalization
• Non-local Lagrangian fields: Noether's theorem and Hamiltonian formalism
• New non-singular cosmological solution of non-local gravity
• On Nonlocal Modified Gravity and Cosmology
• Mutated hybrid inflation in $f(R,\square R)$-gravity
• Nonlocal de Sitter gravity and its exact cosmological solutions
• Primordial Perturbations Spectra in a Holographic Phase
• Newtonian Potential and Geodesic Completeness in Infinite Derivative Gravity
• Non-local scalar fields in static spacetimes via heat kernels
• Seeing through the cosmological bounce: Footprints of the contracting phase and luminosity distance in bouncing models
• A model of nonsingular universe
• Perturbative stability of SFT-based cosmological models
• Cosmic 21-cm Fluctuations as a Probe of Fundamental Physics
• Gravitational Waves and Degrees of Freedom in Higher Derivative Gravity
• One-loop effective potential in the non-local supersymmetric gauge theory
• Quantum gravity phenomenology at the dawn of the multi-messenger era -- A review
• Non-perturbative over-production of axion-like-particles (ALPs) via derivative interaction
• Infinite-derivative linearized gravity in convolutional form
• Podolsky electrodynamics from a condensation of topological defects
• Phase transitions during Cyclic-Inflation and Non-gaussianity
• Nonsingular black holes and nonsingular universes in the regularized Lovelock gravity
• On the causality properties in non-local gravity theories
• New Cosmological Solutions of a Nonlocal Gravity Model
• Early universe in quantum gravity
• Cosmology in nonlocal gravity
• Variations of Infinite Derivative Modified Gravity
• Quantum spreading of a self-gravitating wave-packet in singularity free gravity
• Dark matter and baryogenesis in the Fermi-bounce curvaton mechanism
• Revealing Infinite Derivative Gravity's true potential: The weak-field limit around de Sitter backgrounds
• Infrared scaling for a graviton condensate
• Knot Universes in Bianchi Type I Cosmology
• Study in the noncanonical domain of Goldstone inflation
• Eternal Universes
• Non-locality and gravitoelectromagnetic duality
• Hamiltonian Formalism for Nonlocal Gravity Models
• Stability issues of black hole in non-local gravity
• Quantum interference in external gravitational fields beyond General Relativity
• Nonlocal Massive Gravity from Einstein Gravity
• Perturbations in Bouncing and Cyclic Models, a General Study
• Asymptotic nonlocality
• Four-dimensional Brane-Chern-Simons Gravity and Cosmology
• 4D Einstein-Gauss-Bonnet Gravity From Non-Einsteinian Phase
• Ultraviolet Complete Quantum Field Theory and Particle Model
• Interesting features of a general class of higher derivative theories of quantum gravity
• On the one-loop effective potential in nonlocal supersymmetric theories
• Negative non-Gaussianity as a salvager for PBHs with PTAs in bounce
• Infinite derivative gravity resolves nonscalar curvature singularities
• Large Radius Hagedorn Regime in String Gas Cosmology
• Dimensional flow in the kappa-deformed space-time
• The Volume of the Past Light-Cone and the Paneitz Operator
• Bouncing cosmology in the limiting curvature theory of gravity
• Gravitons in a Box
• An Improved Cosmological Model
• Possible Enhancement of High Frequency Gravitational Waves
• Worldline theories with towers of internal states
• Non-perturbative Lee-Wick gauge theory: Towards Confinement and RGE with strong couplings
• Junction conditions in infinite derivative gravity
• Quantum Hořava-Lifshitz cosmology in the de Broglie-Bohm interpretation
• Fate of the false vacuum in string-inspired nonlocal field theory
• Emergent universe: tensor perturbations within the CSL framework
• Conditions for defocusing around more general metrics in Infinite Derivative Gravity
• Saving the universe with finite volume effects
• Emergent universe revisited through the CSL theory
• Testing non-local gravity through Ultra-Diffuse Galaxies kinematics
• Cyclic universe due to phantom and quintessence
• General Bianchi IX dynamics in bouncing braneworld cosmology: homoclinic chaos and the BKL conjecture
• Gravitational radiation in Infinite Derivative Gravity and connections to Effective Quantum Gravity
• Criteria for resolving the cosmological singularity in Infinite Derivative Gravity around expanding backgrounds
• Black holes in non-local gravity
• Modified Starobinsky inflation by the $R\ln \left(\square \right)R$ term
• Covariant phase space and $L_{\infty }$ algebras
• The Cosmological Slingshot Scenario: Myths and Facts
• On the Dynamical Instability of Monatomic Fluid Spheres in (N+1)-Dimensional Spacetime
• Cyclic spacetimes through singularity scattering maps. The laws of quiescent bounces
• The Weinberg no-go theorem for cosmological constant and nonlocal gravity
• Topological defects in nonlocal field theories
• Numerically Investigating the Emergent Cyclic Inflation Scenario
• Gravitational Bounce from the Quantum Exclusion Principle
• Non-singular "Gauss'' black hole from non-locality
• Infinite Derivatives vs Integral Operators. The Moeller-Zwiebach Puzzle
• Ghost-free infinite-derivative dilaton gravity in two dimensions
• Cosmic Acceleration in the Nonlocal Approach to the Cosmological Constant Problem
• Exact gyratons in higher and infinite derivative gravity
• Gravitational field of scalar lumps in higher-derivative gravity
• Realization of blue spectrum in generalized Galileon super-inflation models
• String theory and primordial cosmology
• Smearing out contact terms in ghost-free infinite derivative quantum gravity
• On the Meaning of Localization in Non-Local Quantum Field Theory
• Uncertainty Principles and Non-local Black Holes
• Nonlocal scalar field in an external potential: WKB approximation
• Two-loop effective potential for general higher-derivative superfield models
• A novel nonlocal spin-1/2 theory: classical and quantum aspects
• The trace of field equations for higher-derivative gravity and an equality associating the Lagrangian density with a divergence term
• The stability of the de-Sitter universe in nonlocal gravity
• Nonlocal spinor superfield theory
• Crunching, Bouncing, and Cyclical Cosmologies from Dark Sector Interactions
• Cosmology of fractional gravity
• A Covariant Curvature-History Field Formulation for State-Dependent Infinite-Derivative Gravity
• Magnetogenesis in non-local models during inflation
• Renormalisable Non-local Quark-Gluon Interaction: Mass Gap, Chiral Symmetry Breaking & Scale Invariance
• RRR fluctuations from non-singular bounce
• New effective theories of gravitation and their phenomenological consequences
• Cosmology from a gauge induced gravity
• Kerr-Schild perturbations in higher derivative gravity theories in $D$ dimensions