Chameleon Fields: Awaiting Surprises for Tests of Gravity in Space

Abstract

We present a novel scenario where a scalar field acquires a mass which depends on the local matter density: the field is massive on Earth, where the density is high, but is essentially free in the solar system, where the density is low. All existing tests of gravity are satisfied. We predict that near-future satellite experiments could measure an effective Newton's constant in space different than that on Earth, as well as violations of the equivalence principle stronger than currently allowed by laboratory experiments.

4 pages, 2 figures. v2: expanded thin-shell discussion. v3: added 2 figures showing numerical results that confirm thin-shell effect

References in corpus (1)

• Chameleon Cosmology

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• Stellar kinematics from the symmetron fifth force in the Milky Way disk
• Solar system tests of f(R) gravity
• The Local Effects of Cosmological Variations in Physical 'Constants' and Scalar Fields I. Spherically Symmetric Spacetimes
• FLRW cosmology with EDSFD parametrization
• Screened Scalar Fields in the Laboratory and the Solar System
• Non-standard gravitational waves imply gravitational slip: on the difficulty of partially hiding new gravitational degrees of freedom
• Constraints on axion-like particles and non-Newtonian gravity from measuring the difference of Casimir forces
• Beyond delta: Tailoring marked statistics to reveal modified gravity
• A general framework to test gravity using galaxy clusters I: Modelling the dynamical mass of haloes in $f(R)$ gravity
• Post-Newtonian Approximation of Teleparallel Gravity Coupled with a Scalar Field
• Halo Scale Predictions of Symmetron Modified Gravity
• The nonlinear dynamical stability of infrared modifications of gravity
• Unitarity and the Vainshtein Mechanism
• Chameleonic Generalized Brans--Dicke model and late-time acceleration
• Classifying Linearly Shielded Modified Gravity Models in Effective Field Theory
• Statefinder diagnostic for modified Chaplygin gas cosmology in f(R,T) gravity with particle creation
• The impact of modified gravity on the Sunyaev-Zel'dovich effect
• Absence of the Fifth Force Problem in a Model with Spontaneously Broken Dilatation Symmetry
• Probing Dark Energy Dynamics from Current and Future Cosmological Observations
• Limits on a Gravitational Field Dependence of the Proton--Electron Mass Ratio from H${}_2$ in White Dwarf Stars
• A general framework to test gravity using galaxy clusters II: A universal model for the halo concentration in $f(R)$ gravity
• Fast full $N$-body simulations of generic modified gravity: derivative coupling models
• Wormholes supported by phantom energy from Shan-Chen cosmological fluids
• Enhanced Peculiar Velocities in Brane-Induced Gravity
• Cosmological Implications of the Effective Field Theory of Cosmic Acceleration
• Effective field theory of modified gravity on the spherically symmetric background: leading order dynamics and the odd-type perturbations
• Limitations on Standard Sirens tests of gravity from screening
• "Detuned" f(R) gravity and dark energy
• Current Acceleration from Dilaton and Stringy Cold Dark Matter
• Towards a medium-scale axion helioscope and haloscope
• Comments on "Solar System constraints to general f(R) gravity"
• Measurement of marked correlation functions in SDSS-III Baryon Oscillation Spectroscopic Survey using LOWZ galaxies in Data Release 12
• Emergent Spacetime in Stochastically Evolving Dimensions
• Constraining screened fifth forces with the electron magnetic moment
• Domain wall solution in $F(R)$ gravity and variation of the fine structure constant
• Simulation tests of galaxy cluster constraints on chameleon gravity
• Thermodynamics and Shadows of quantum-corrected Reissner-Nordström black hole surrounded by quintessence
• New MGCAMB tests of gravity with CosmoMC and Cobaya
• Three-Point Correlations in f(R) Models of Gravity
• Constraints on Spatially Oscillating Sub-mm Forces from the Stanford Levitated Microsphere Experiment Data
• Spatially Covariant Theories of a Transverse, Traceless Graviton, Part I: Formalism
• A new black hole coupled with nonlinear electrodynamics surrounded by quintessence: Thermodynamics, Geodesics, and Regge-Wheeler Potential
• Axion Homeopathy: Screening Dilaton Interactions
• Derivative Chameleons
• Constraints on non-Newtonian gravity and axionlike particles from measuring the Casimir force in nanometer separation range
• Weak lensing by galaxy troughs with modified gravity
• Anisotropic instability in a higher order gravity theory
• Gravitational Effects of Disformal Couplings
• Modified gravity, Dark Energy and MOND
• Composition-dependent long range forces from varying m_p/m_e
• Chameleon foreCAST
• Nonlinear cosmological consistency relations and effective matter stresses
• Lensing with generalized symmetrons
• Modified Brans-Dicke cosmology with matter-scalar field interaction
• Expansion history and f(R) modified gravity
• Dark matter from dark energy-baryonic matter couplings
• Shape of Clusters as a Probe of Screening Mechanisms in Modified Gravity
• R^n gravity and the chameleon
• Testing Gravity Theories Using Stars
• Constraining the cosmological model of modified $f(Q)$ gravity: Phantom dark energy and observational insights
• Probing new physics using Rydberg states of atomic hydrogen
• Angular momentum loss for eccentric compact binary in screened modified gravity
• Exact Solution for Chameleon Field, Self-Coupled Through the Ratra-Peebles Potential with n = 1 and Confined Between Two Parallel Plates
• Gravitational transitions via the explicitly broken symmetron screening mechanism
• Observational effects of a running Planck mass
• The imprint of $f(R)$ gravity on weak gravitational lensing I: Connection between observables and large scale structure
• Gravitational waveforms from the quasicircular inspiral of compact binaries in massive Brans-Dicke theory
• Cosmological tests of modified gravity: constraints on $F(R)$ theories from the galaxy clustering ratio
• Dilaton Solutions for Laboratory Constraints and Lunar Laser Ranging
• Linear stability of black holes with static scalar hair in full Horndeski theories: generic instabilities and surviving models
• Ghost Cosmology: Exact Solutions, Transitions Between Standard Cosmologies and Ghost Dark Energy/Matter Evolution
• The dynamical viability of scalar-tensor gravity theories
• SNLS data are consistent with acceleration at z=3
• Next generation design and prospects for CANNEX
• The Influence of Galaxy Formation Physics on Weak Lensing Tests of General Relativity
• $\text{Hi-COLA}$: Fast, approximate simulations of structure formation in Horndeski gravity
• Breaking the Vainshtein screening in clusters of galaxies
• Dynamical systems study of Chameleon scalar field
• Symmetron and de Sitter attractor in a teleparallel model of cosmology
• K-mouflage gravity models that pass Solar System and cosmological constraints
• Quantum Chameleons
• Small-scale Nonlinear Dynamics of K-mouflage Theories
• Spin-orbit effects for compact binaries in scalar-tensor gravity
• Inspiral gravitational waveforms from compact binary systems in Horndeski gravity
• An exact solution for a rotating black hole in modified gravity
• Detecting solar chameleons through radiation pressure
• The shape dependence of chameleon screening
• Statefinder Analysis of Symmetric Teleparallel Cosmology
• Current observations with a decaying cosmological constant allow for chaotic cyclic cosmology
• New Matter Effects and BBN Constraints for Mass Varying Neutrinos
• Testing General Relativity with Black Hole-Pulsar Binaries
• The Local Effects of Cosmological Variations in Physical 'Constants' and Scalar Fields II. Quasi-Spherical Spacetimes
• Geodesic Structure of the Quantum-Corrected Schwarzschild Black Hole Surrounded by Quintessence
• Reconstructing a model of quintessential inflation
• Quantum Equivalence Principle Violations in Scalar-Tensor Theories
• Testing gravity at large scales with HI intensity mapping
• Second-order matter density perturbations and skewness in scalar-tensor modified gravity models
• Stringent bounds to spatial variations of the electron-to-proton mass ratio in the Milky Way
• Cosmological Large-scale Structures beyond Linear Theory in Modified Gravity
• The no-boundary measure in scalar-tensor gravity
• Study of eccentric binaries in Horndeski theory
• Compact Star in General $F(R)$ Gravity: Inevitable Degeneracy Problem and Non-Integer Power Correction
• Equation-of-state-insensitive measure of neutron star stiffness
• Effects of modified theories of gravity on neutrino pair annihilation energy deposition near neutron stars
• K-mouflage effects on clusters of galaxies
• Testing the variability of the proton-to-electron mass ratio from observations of methanol in the dark cloud core L1498
• Implications of the XENON1T Excess on the Dark Matter Interpretation
• Merging matter and geometry in the same Lagrangian
• Cosmology with a successful Vainshtein screening in theories beyond Horndeski
• Convolution Lagrangian perturbation theory for biased tracers beyond general relativity
• Improved Search for Solar Chameleons with a GridPix Detector at CAST
• Weighing massive neutron star with screening gravity: A look on PSR J0740+6620 and GW190814 secondary component
• Astrophysical Signatures of Black holes in Generalized Proca Theories
• Do cosmological data rule out $f(\mathcal{R})$ with $w\ne -1$?
• Interacting New Agegraphic Dark Energy in a Cyclic Universe
• Searching for a Fifth Force with Atomic and Nuclear Clocks
• Dynamical Relaxation of the Dark Matter to Baryon Ratio
• The phenomenology of beyond Horndeski gravity
• Dilaton as a Dark Matter Candidate and its Detection
• Spontaneous symmetry breaking in cosmos: The hybrid symmetron as a dark energy switching device
• A gravitational constant transition within cepheids as supernovae calibrators can solve the Hubble tension
• Scalar Fields Near Compact Objects: Resummation versus UV Completion
• Lunar Laser Ranging constraints on nonminimally coupled dark energy and standard sirens
• Observational Constraints in Nonlocal Gravity: the Deser-Woodard Case
• Testing $f(R)$ dark energy model with the large scale structure
• Binary Systems as Test-beds of Gravity Theories
• Universal predictions of screened modified gravity on cluster scales
• Exact Solutions to Non-Linear Symmetron Theory II: One and Two Mirror Systems
• Constraints on a possible variation of the fine structure constant from galaxy cluster data
• Non-Canonical Volume-Form Formulation of Modified Gravity Theories and Cosmology
• Scalar radiation from Chameleon-shielded regions
• K-mouflage Imprints on Cosmological Observables and Data Constraints
• New probe of gravity: strongly lensed gravitational wave multi-messenger approach
• Probing for massive stochastic gravitational-wave background with a detector network
• Probing Modified Gravity with Integrated Sachs-Wolfe CMB and Galaxy Cross-correlations
• Explaining the Proton Radius Puzzle with Disformal Scalars
• String theory, gravity and experiment
• Dilaton-induced open quantum dynamics
• The GammeV suite of experimental searches for axion-like particles
• Constraints on galileons from the positions of supermassive black holes
• A general study of chameleon fifth force in gravity space experiments
• Spatial Curvature in $f(R)$ Gravity
• Kick it like DESI: PNGB quintessence with a dynamically generated initial velocity
• New searches at the reactor experiments based on the dark axion portal
• Generic f(R) theories and classicality of their scalarons
• Strongly coupled chameleon fields: possible test with a neutron Lloyd's mirror interferometer
• Pressure effects in the weak-field limit of f(R) = R + alpha R^2 gravity
• Probing Modified Gravity with Atom-Interferometry: a Numerical Approach
• Gravitational Mechanisms to Self-Tune the Cosmological Constant: Obstructions and Ways Forward
• Topology of large scale structure as test of modified gravity
• Gravitational Lensing in Modified Gravity: A case study for Fast Radio Bursts
• Constraining the interaction between dark sectors with future HI intensity mapping observations
• Acceleration of the Universe in f(R) Gravity Models
• Coupled dark energy and dark matter from dilatation anomaly
• Dark Energy within the Generalized Uncertainty Principle in Light of DESI DR2
• Higher neutrino mass allowed if Cold Dark Matter and Dark Energy are coupled
• Tolman-Oppenheimer-Volkoff Equations and their implications or the structures of relativistic Stars in f(T) gravity
• Strong lensing by DHOST black holes
• Test of hybrid metric-Palatini f(R)-gravity in binary pulsars
• The Quantum Field Theory of K-mouflage
• Early Modified Gravity: Implications for Cosmology
• Analytic solutions of the geodesic equation for Reissner-Nordström-(anti-)de Sitter black holes surrounded by different kinds of regular and exotic matter fields
• Unifying Inflation with early and late Dark Energy in Multi-Fields: Spontaneously broken scale invariant TMT
• Emergent long-range interactions in Bose-Einstein Condensates
• The Gravitational Horizon for a Universe with Phantom Energy
• Screenings in Modified Gravity: a perturbative approach
• Impact of symmetron screening on the Hubble tension: new constraints using cosmic distance ladder data
• Vainshtein mechanism in Gauss-Bonnet gravity and Galileon aether
• Constraining Screened Modified Gravity by Space-borne Gravitational-wave Detectors
• Mass freezing in growing neutrino quintessence
• A Tale of Two Timescales: Mixing, Mass Generation, and Phase Transitions in the Early Universe
• Dark energy from cosmological fluids obeying a Shan-Chen non-ideal equation of state
• Constraints on decaying early modified gravity from cosmological observations
• Neutrino spin oscillations in conformally gravity coupling models and quintessence surrounding a black hole
• Dynamics of false vacuum bubbles in Brans-Dicke theory
• Detecting Chameleon Dark Energy via Electrostatic Analogy
• Cosmological disformal transformations to the Einstein frame and gravitational couplings with matter perturbations
• Distinguishing modified gravity models
• A critical discussion on the $H_0$ tension
• External Fields as a Probe for Fundamental Physics
• Schwarzschild Black Hole Surrounded by Perfect Fluid Dark Matter in the presence of Quintessence Matter Field
• Testing $f(R)$ Gravity With Scale Dependent Cosmic Void Velocity Profiles
• The Abnormally Weighting Energy Hypothesis: the Missing Link between Dark Matter and Dark Energy
• Equivalence Principle in Chameleon Models
• Fundamental constants and tests of general relativity - Theoretical and cosmological considerations
• Studying large-scale structure probes of modified gravity with COLA
• Solar System tests and chameleon effect in f (R) gravity
• Fast generation of mock galaxy catalogues in modified gravity models with COLA
• Cosmic Evolution in Self-Interacting Brans-Dicke Cosmology
• Symmetry breaking and the onset of cosmic acceleration in scalar field models
• Dynamics of Supersymmetric Chameleons
• Prospects for detecting axionlike particles at the Coherent CAPTAIN-Mills experiment
• Linearized modified gravity theories with a cosmological term: advance of perihelion and deflection of light
• Scalar-Tensor gravity with system-dependent potential and its relation with Renormalization Group extended General Relativity
• Horndeski gravity without screening in binary pulsars
• Modified Einstein versus Modified Euler for Dark Matter
• Sudden singularities in generalized hybrid metric-Palatini cosmologies
• Discrimination between Lambda-CDM, quintessence, and modified gravity models using wide area surveys
• How chameleons core dwarfs with cusps
• Modified gravity in the interior of population II stars
• Fifth forces and broken scale symmetries in the Jordan frame
• A Proposed Experimental Search for Chameleons using Asymmetric Parallel Plates
• Unbiased Cosmic Opacity Constraints from Standard Sirens and Candles
• 3D Weak Lensing: Modified Theories of Gravity
• A general framework to test gravity using galaxy clusters III: Observable-mass scaling relations in $f(R)$ gravity
• Modified gravity with an exponential function of curvature
• MICROSCOPE's constraint on a short-range fifth force
• Stringent Pulsar Timing Bounds on Light Scalar Couplings to Matter
• Cosmological evolution with quadratic gravity and nonideal fluids
• Gravitational Lensing Constraints on Dynamical and Coupled Dark Energy
• Constraining Horndeski theory with gravitational waves from coalescing binaries
• Unexplored regions in teleparallel $f(T)$ gravity: Sign-changing dark energy density
• Euclid: Constraining linearly scale-independent modifications of gravity with the spectroscopic and photometric primary probes
• Properties of scalar wave emission in a scalar-tensor theory with kinetic screening
• Is the $W$-boson mass enhanced by the axion-like particle, dark photon, or chameleon dark energy?
• Constraints on chameleon gravity from the measurement of the electrostatic stiffness of the MICROSCOPE mission accelerometers
• Highly compact neutron stars and screening mechanisms. I. Equilibrium and stability
• Marked correlation functions in perturbation theory
• The effective field theory of K-mouflage
• An accurate method of modeling cluster scaling relations in modified gravity
• Cosmological evolution of thermal relic particles in $f(R)$ gravity
• Revisiting the matter power spectra in $f(R)$ gravity
• Where are the Walls?
• Model-independent constraints on r^-3 extra-interactions from orbital motions
• Relativistic polytropic spheres embedded in a chameleon scalar field
• Cosmic Acceleration in Brans-Dicke Cosmology
• Chameleon Cosmology Model Describing the Phantom Divide Line Crossing
• Restricting Fourth Order Gravity via Cosmology
• Scalar perturbations in p-nflation: the 3-form case
• Neutrino Dark Energy and Moduli Stabilization in a BPS Braneworld Scenario
• Probing Theories of Gravity with Phase Space-Inferred Potentials of Galaxy Clusters
• Constraining gravity with a new precision $E_G$ estimator using Planck + SDSS BOSS
• fkPT: Constraining scale-dependent modified gravity with the full-shape galaxy power spectrum
• Cuscuta-Galileon cosmology: Dynamics, gravitational "constant"s and the Hubble Constant
• Search for varying constants of nature from astronomical observation of molecules
• Testing the weak equivalence principle by differential measurements of fundamental constants in the Magellanic Clouds
• Constraints on Dark Energy from the Observed Expansion of our Cosmic Horizon
• Cosmological Probes of Structure Growth and Tests of Gravity
• Constraining extended cosmologies with GW$\times$LSS cross-correlations
• SUPER-Screening
• Particlelike solutions in modified gravity: the Higgs monopole
• Constraints on $f(R)$ and nDGP Modified Gravity Model Parameters with Cluster Abundances and Galaxy Clustering
• Damped Neutrino Oscillations in a Conformal Coupling Model
• Effective Dark Matter Halo catalog in $f(R)$ gravity
• Probing variation of the fine-structure constant in runaway dilaton models using Strong Gravitational Lensing and Type Ia Supernovae
• Axion-Like Particle Production at Beam Dump Experiments with Distinct Nuclear Excitation Lines
• Constraining modified gravity with quantum optomechanics
• Brans--Dicke cosmology does not have the $\Lambda$CDM phase as an universal attractor
• Testing Standard Model extensions with few-electron ions
• Multi-scale Constraints on Scalar-Field couplings to Matter: The Geodetic and Frame-Dragging Effects
• Generalized Galileon Model -- cosmological reconstruction and the Vainshtein mechanism --
• The phase space analysis of modified gravity (MOG)
• Role of Chameleon Field in Accelerating Universe
• Dark Energy and Neutrino CPT Violation
• Designing dark energy afterglow experiments
• Linear perturbations in viable f(R) theories
• Cosmic Tsunamis in Modified Gravity: Disruption of Screening Mechanisms from Scalar Waves
• Revisiting the screening mechanism in $f(R)$ gravity
• Chameleon Field Dynamics During Inflation
• About matter and dark-energy domination eras in R^n gravity or lack thereof
• Small Cosmological Constant from Running Gravitational Coupling
• An updated analysis of two classes of f(R) theories of gravity
• Parameterised Post-Newtonian Expansion in Screened Regions
• $F(R)$ gravity in the early Universe: Electroweak phase transition and chameleon mechanism
• EFT Interpretation of XENON1T Electron Recoil Excess: Neutrinos and Dark Matter
• Searching for spatial variations of alpha^2/mu in the Milky Way
• Massive graviton dark matter with environment dependent mass: A natural explanation of the dark matter-baryon ratio
• Big Bang Nucleosynthesis with an Evolving Radion in the Brane World Scenario
• Chameleon-Photon Mixing in a Primordial Magnetic Field
• Gravitational-wave constraints on scalar-tensor gravity from a neutron star and black-hole binary GW200115
• Kaluza-Klein Reduction of Massive and Partially Massless Spin-2 Fields
• Dynamical Analysis of Screening in Scalar-Tensor Theory
• Chameleonic inflation
• Magnetogenesis and the primordial non-gaussianity
• Quantum-enhanced screened dark energy detection
• Chameleon Induced Atomic Afterglow
• Sesame: A power spectrum emulator pipeline for beyond-$\Lambda$CDM models
• Charged Dark Matter and the $H_0$ tension
• How to Avoid a Swift Kick in the Chameleons
• Shape dependence of spontaneous scalarization
• Spontaneous symmetry breaking in the late Universe and glimpses of early Universe phase transitions à la baryogenesis
• Stability of mass varying particle lumps
• Extending applicability of bimetric theory: chameleon bigravity
• Quantum simulation of dark energy candidates
• Modifying Gravity at Low Redshift
• Light bosons and photospheric solutions to the solar abundance problem
• Light Axiodilatons: Matter Couplings, Weak-Scale Completions and Long-Distance Tests of Gravity
• Fifth force induced by a chameleon field on nested cylinders
• Moduli-Induced Vacuum Destabilisation
• Generalized Brans-Dicke theories in light of evolving dark energy
• Probing scalar tensor theories for gravity in redshift space
• Exact Solutions and Accelerating Universe in Modified Brans-Dicke Theories
• Galileons, phantom fields, and the fate of the Universe
• Fifth-Force Screening around Extremely Compact Sources
• Modified Gravity and the CMB
• An Environmental Variation of Constants
• Dark energy loopholes some time after GW170817
• The Well-Tempered Cosmological Constant: The Horndeski Variations
• Searching for Chameleon Dark Energy with Mechanical Systems
• Challenging the Cosmological Constant
• Influence functionals, decoherence and conformally coupled scalars
• Power-law solutions and accelerated expansion in scalar-tensor theories
• Kaluza-Klein Towers in the Early Universe: Phase Transitions, Relic Abundances, and Applications to Axion Cosmology
• Quark-hadron phase transition in a chameleon Brans-Dicke model of brane gravity
• Screening Mechanism and Late-time Cosmology: Role of a Chameleon-Brans-Dicke Scalar Field
• A New Dimension Hidden in the Shadow of a Wall
• On the supersymmetrization of inflation in f(R) gravity
• Dynamical analysis in regularized $4D$ Einstein-Gauss-Bonnet gravity with non-minimal coupling
• Can Galileons solve the muon problem?
• The Music of the Aetherwave - B-mode Polarization in Einstein-Aether Theory
• Supersymmetron
• Ellipsoidal configurations in the de Sitter spacetime
• Hunting dark energy with pressure-dependent photon-photon scattering
• Detecting dark energy in long baseline neutrino oscillations
• Searches for New Particles Including Dark Matter with Atomic, Molecular and Optical Systems
• Solar System Constraints on a Cosmologically Viable $f(R)$ Theory
• Equivalence Principle (EP) and Solar System Constraints on $R(1\pm \epsilon \ln (\frac{R}{R_c}))$ model of Gravity
• Quantum Aspects of Massive Gravity II: Non-Pauli-Fierz Theory
• Designing Surveys for Tests of Gravity
• Chameleonic Theories: A Short Review
• Accurate Computation of the Screening of Scalar Fifth Forces in Galaxies
• The local dark sector. Probing gravitation's low-acceleration frontier and dark matter in the Solar System neighborhood
• On the action of the complete Brans-Dicke theory
• Quantum-corrected Schwarzschild AdS black hole surrounded by quintessence: Thermodynamics and Shadows
• Thermodynamics of Shearing Massless Scalar Field Spacetimes is Inconsistent With the Weyl Curvature Hypothesis
• Scalar field power-law cosmology with spatial curvature and dark energy-dark matter interaction
• Constraining Chameleon screening using galaxy cluster dynamics
• Testing gravity with halo density profiles observed through gravitational lensing
• The effective Lagrangian of dark energy from observations
• How CMB and large-scale structure constrain chameleon interacting dark energy
• Classical Duals, Legendre Transforms and the Vainshtein Mechanism
• Screening the Higgs portal
• Cosmic strings in generalized hybrid metric-Palatini gravity
• A stringy perspective on the coincidence problem
• Search for dark energy with neutron interferometry
• Non-Relativistic Approximation of the Dirac Equation for Slow Fermions in Static Metric Spacetimes
• Modeling and Analyzing Stability of Hybrid Stars within $f(Q)$ Gravity
• Effective dark matter power spectra in $f(R)$ gravity
• Warm inflation with non-comoving scalar field and radiation fluid
• Cosmic jerk parameter in symmetric teleparallel cosmology
• Interpretation of geodesy experiments in non-Newtonian theories of gravity
• Solar chameleons: Novel channels
• Redshift space distortions in the presence of non-minimally coupled dark matter
• Test of Einstein Equivalence Principle by frequency comparisons of optical clocks
• Consequences of Fine-Tuning for Fifth Force Searches
• Chameleonic dilaton, nonequivalent frames, and the cosmological constant problem in quantum string theory
• Effects of Chameleon Scalar Field on Rotation Curves of the Galaxies
• Chameleon mechanism with a new potential
• Expanded solar-system limits on violations of the equivalence principle
• The Chameleonic Contribution to the SZ Radial Profile of the Coma Cluster
• Will-Nordtvedt PPN formalism applied to renormalization group extensions of general relativity
• On the holographic dark energy in chameleon scalar-tensor cosmology
• The Chameleon Effect in the Jordan Frame of the Brans--Dicke Theory
• Calibrating magnification bias for the $E_G$ statistic to test general relativity
• Extended Chameleons
• Schwarzschild black hole surrounded by quintessential matter field as an accelerator for spinning particles
• Spin Precession of Slow Neutrons in Einstein-Cartan Gravity with Torsion, Chameleon and Magnetic Field
• Chameleon Mechanism in Scalar Nonmetricity Cosmology
• Constraining massless dilaton theory at Solar system scales with the planetary ephemeris INPOP
• Testing fundamental physics with photon frequency shift
• Effect of quintessence dark energy on the shadow of Hayward black holes with spherical accretion
• Towards unveiling the large-scale nature of gravity with the wavelet scattering transform
• Fundamental constants and their variability in theories of High Energy Physics
• Weighted density fields as improved probes of modified gravity models
• Varying fundamental constants: a full covariant approach and cosmological applications
• Imprints of screened dark energy on nonlocal quantum correlations
• Chameleons on the Racetrack
• Scalar-Mediated Quantum Forces Between Macroscopic Bodies and Interferometry
• Cosmological effects of coupled dark matter
• Gravitational couplings in Chameleon models
• Interacting quintessence cosmology from Noether symmetries: comparing theoretical predictions with observational data
• Non-Relativistic Approximation of Dirac Equation for Slow Fermions Coupled to the Chameleon and Torsion Fields in the Gravitational Field of the Earth
• Evolution of the Chameleon Scalar Field in the Early Universe
• The effect of modified dispersion relations on the thermodynamics of Schwarzschild black hole surrounded by quintessence
• Notes on the post-Newtonian limit of massive Brans-Dicke theory
• First and second order cosmological perturbations in light mass Galileon models
• Towards an accurate model of small-scale redshift-space distortions in modified gravity
• Estimates of cluster masses in screened modified gravity
• Mixed fluid cosmological model in $f(R,T)$ gravity
• Cosmic acceleration and ekpyrotic bounce with Chameleon field
• Monopolar and quadrupolar gravitational radiation from magnetically deformed neutron stars in modified gravity
• Chameleon Fragmentation
• Superradiant instabilities by accretion disks in scalar-tensor theories
• New Actions for Modified Gravity and Supergravity
• Chameleon effect and the Pioneer anomaly
• Novel Screening with Two Bodies: Summing the ladder in disformal scalar-tensor theories
• Dynamical reconstruction of the $\Lambda$CDM model in hybrid metric-Palatini gravity
• Collapsing scenarios of K-essence generalized Vaidya spacetime under $f(\bar{R},\bar{T})$ gravity
• Challenges in Constraining Gravity with Cosmic Voids
• Effective Potential of Scalar-Tensor Gravity
• Astrophysical constraints on the proton-to-electron mass ratio with FAST
• A general framework to test gravity using galaxy clusters VI: Realistic galaxy formation simulations to study clusters in modified gravity
• Goldstone models of modified gravity
• Probing the electron-to-proton mass ratio gradient in the Milky Way with class I methanol masers
• Cosmic transparency and acceleration
• Do Bound Structures Brake Cosmic Acceleration?
• Effects of a scalar fifth force on the dynamics of a charged particle as a new experimental design to test chameleon theories
• Unscreening scalarons with a black hole
• Cosmological effects on $f(\bar{R},\bar{T})$ gravity through a non-standard theory
• Simultaneous effect of Modified Gravity and Primordial Non-Gaussianity in Large Scale Structure Observations
• Comments on Scalar-Tensor Representation of $f(R)$ Theories
• Inflationary equilibrium configurations of scalar-tensor theories of gravity
• A general framework to test gravity using galaxy clusters V: A self-consistent pipeline for unbiased constraints of $f(R)$ gravity
• Particle level screening of scalar forces in 1+1 dimensions
• High-redshift test of gravity using enhanced growth of small structures probed by the neutral hydrogen distribution
• On the galaxy 3-point correlation function in Modified Gravity
• Local Varying-Alpha Theories
• The Nature of Dark Energy and Constraints on Its Hypothetical Constituents from Force Measurements
• On the Higgs-like Quintessence for Dark Energy
• Solar System constraints on Renormalization Group extended General Relativity: The PPN and Laplace-Runge-Lenz analyses with the external potential effect
• Pathfinder for a High Statistics Search for Missing Energy In Gamma Cascades
• Potential of the neutron Lloyd's mirror interferometer for the search for new interactions
• Non-local scalar fields inflationary mechanism in light of Planck $2013$
• Dynamical trapping and relaxation of scalar gravitational fields
• Solving nonlinear Klein-Gordon equations on unbounded domains via the Finite Element Method
• Chameleonic dilaton and conformal transformations
• Scalar polarization window in gravitational-wave signals
• The Price of Neutrino Superluminality continues to rise
• Nonrelativistic isothermal fluid in the presence of a chameleon scalar field: Static and collapsing configurations
• Towards an optimal marked correlation function analysis for the detection of modified gravity
• Compact star in noninteger power model of $f(R)$ gravity
• Chameleon Field in a Spherical Shell System
• Noncommutative Universe and Chameleon Field Dynamics
• Local stability of self-gravitating disks in $f(R)$ gravity
• Conformal inflation with chameleon coupling
• Equivalence principle in scalar-tensor gravity
• Casimir Tests of Scalar-Tensor Theories
• Screening and degenerate kinetic self-acceleration from the nonlinear freedom of reconstructed Horndeski theories
• Effective field theory analysis of the self-interacting chameleon
• Astrophysical and electromagnetic emissivity properties of black holes surrounded by a quintessence type exotic fluid in the Scalar-Vector-Tensor Modified Gravity
• Dynamic scale anomalous transport in QCD with electromagnetic background
• A (varying power)-law modified gravity
• Cosmological singularity theorems for $f(R)$ gravity theories
• Euclid preparation LXXI. Simulations and nonlinearities beyond $\mathsf{\Lambda }$CDM. 3. Constraints on $f(R)$ models from the photometric primary probes
• Frequency shifts induced by light scalar fields
• Species, chameleonic strings and the concept of particle
• Higgs chameleon
• Subhalo abundance matching in $f(R)$ gravity
• Cosmological Dynamics of D-BIonic and DBI Scalar Field and Coincidence Problem of Dark Energy
• Emergent gravity from the IIB matrix model and cancellation of a cosmological constant
• Scalar Dark Energy Models and Scalar-Tensor Gravity: Theoretical Explanations for the Accelerated Expansion of Present Universe
• Obtaining a scalar fifth force via a broken-symmetry couple between the scalar field and matter
• Standard Electroweak Interactions in Gravitational Theory with Chameleon Field and Torsion
• Chameleon Early Dark Energy and the Hubble Tension
• Calibrating the standard candles with strong lensing
• Cosmic Acceleration and Geodesic Deviation in Chameleon Scalar Field Model
• Dilaton stabilization and composite dark matter in the string frame of heterotic-M-theory
• Beyond the Standard Model of Physics with Astronomical Observations
• Chameleonic equivalence postulate and wave function collapse
• Phase-space analysis of torsion-coupled dilatonic ghost condensate
• Resilience and implications of adiabatic CMB cooling
• Two-body problem in theories with kinetic screening
• The PVLAS experiment: a 25 year effort to measure vacuum magnetic birefringence
• Cosmic Acceleration in an Extended Brans-Dicke-Higgs Theory
• Evolution of spherical domain walls in solitonic symmetron models
• Chameleon gravity on cosmological scales
• Curvature Singularity in f(R) Theories of Gravity
• Brane World Cosmology, the CMB and the Radion
• Dynamics of the self-interacting chameleon cosmology
• Chameleon stars supported by a cosmological scalar field
• On validity of the quasi-static approximation in scalar-tensor theories
• One-electron atoms in screened modified gravity
• Prospects for an advanced Kennedy-Thorndike experiment in low Earth orbit
• Cleaning up the cosmological constant
• Thawing F(R) cosmology
• Dynamics of self-gravitating systems in non-linearly magnetized chameleonic Brans-Dicke gravity
• Digging into Axion Physics with (Baby)IAXO
• Vainshtein in the UV and a Wilsonian analysis of derivatively coupled scalars
• Some Adventures in the Search for a Modified Gravity Explanation for Cosmic Acceleration
• Mass Modeling and Kinematics of Galaxy Clusters in Modified Gravity
• Wave Propagation in Modified Gravity
• Cosmological cancellation of the vacuum energy density
• Effective Low-Energy Potential for Slow Dirac Fermions in Einstein-Cartan Gravity with Torsion and Chameleon
• Modified Gravity at Astrophysical Scales
• The momentum constraint equation in Parameterised Post-Newtonian Cosmology
• Local gravity test of unified models of inflation and dark energy in $f(R)$ gravity
• Polarization and speed of gravitational waves in hybrid metric-Palatini f(R)-gravity
• Weak-lensing tunnel voids in simulated light cones: A new pipeline to investigate modified gravity and massive neutrinos signatures
• Global asymptotic dynamics of the cubic galileon interacting with dark matter
• NEC violation in $f(\bar{R},\bar{T})$ gravity in the context of a non-canonical theory via modified Raychaudhuri equation
• Hint of dark matter-dark energy interaction in DESI DR2 and current cosmological dataset?
• Scalaron dark matter and the thermal history of the universe
• Dark Energy, scalar-curvature couplings and a critical acceleration scale
• Dynamical Casimir effect with screened scalar fields
• Dark Energy and Extending the Geodesic Equations of Motion: Its Construction and Experimental Constraints
• Screening three-form fields
• Instabilities of scalar fields around oscillating stars
• Calibrating galaxy formation effects in galactic tests of fundamental physics
• Curved-spacetime dynamics of spin-$\frac{1}{2}$ particles in superposed states from a WKB approximation of the Dirac equation
• A consistent scalar-tensor cosmology for inflation, dark energy and the Hubble parameter
• Dark Matter with Density-Dependent Interactions
• Void Lensing in Cubic Galileon Gravity
• A New Exponential Gravity
• Cusp singularities in f(R) gravity: pros and cons
• Degeneracies between Modified Gravity and Baryonic Physics
• Non-Gaussianity of the density distribution in accelerating universes
• Solar system tests of scalar field models with an exponential potential
• Addressing the DESI DR2 Phantom-Crossing Anomaly and Enhanced $H_0$ Tension with Reconstructed Scalar-Tensor Gravity
• Consistency of $f(R)$ gravity models around solar polytropes
• Dynamical system analysis in multiscalar-torsion cosmology
• Plane-wave and wavepacket neutrino flavor oscillations in vacuum in conformal coupling models
• Cosmic scenarios in $f(R)$ gravity: a complete evolution
• Constraining primordial black hole masses through $f(R)$ gravity scalarons in Big Bang Nucleosynthesis
• Viability of Arctan Model of f(R) Gravity for Late-time Cosmology
• Crossing the phantom divide with a classical Dirac field
• Ultra-local models of modified gravity without kinetic term
• Dynamics of holographic dark energy with apparent-horizon cutoff and non-minimal derivative coupling gravity in non-flat FLRW universe
• A chameleon helioscope
• On the Metric $f(R)$ gravity Viability in Accounting for the Binned Supernovae Data
• Modified Gravity with Nonminimal Curvature-Matter Couplings: A Framework for Gravitationally Induced Particle Creation
• Extended holographic Ricci dark energy in chameleon Brans-Dicke cosmology
• Neutrino spin oscillation in screening models revisited
• Chameleon dark matter stars
• Cosmological Solutions of Chameleon Scalar Field Model
• Comparing the motion of dark matter and standard model particles on cosmological scales
• Tracking $f(R)$ cosmology
• Constraints on strongly coupled chameleon fields from the experimental test of the weak equivalence principle for the neutron
• Screening models and neutrino oscillations
• An Electrostatic Analogy for Symmetron Gravity
• Numerical implementation of the Cubic Galileon model in PINOCCHIO
• Strong lensing of gravitational waves with modified propagation
• Notes on the Chameleon Brans-Dicke Gravity
• Inverse Chameleon Mechanism and Mass Limits for Compact Stars
• Spherical accretion of collisional gas in modified gravity I: self-similar solutions and a new cosmological hydrodynamical code
• Dynamical System Analysis Of Chameleon Mechanism in Brans-Dicke Scalar-Tensor Model
• Sensitivity of Tunneling-Rotational Transitions in Ethylene Glycol to Variation of Electron-to-Proton Mass Ratio
• Recent Developments in Degenerate Higher Order Scalar Tensor Theories
• Implications of Dynamical Dark Energy in the expansion of the Universe and the Structure Formation
• Non-Singular Bouncing cosmology from Phantom Scalar-Gauss-Bonnet Coupling: Reconstruction with Observational Insights
• Thick shell regime in the chameleon two-body problem
• Fast simulation mapping: from standard to modified gravity cosmologies using the bias assignment method
• Tests of gravitational scalar polarization and constraints of chameleon $f(R)$ gravity from comprehensive analysis of binary pulsars
• Multi-scalar theories of gravity with direct matter couplings and their parametrized post-Newtonian parameters
• Magnetized matter effects on dilaton photon mixing
• Effect of the Chameleon Scalar Field on Brane Cosmological Evolution
• Precession shift in curvature based Extended Theories of Gravity and Quintessence fields
• Modified gravity with disappearing cosmological constant
• Is scalar-tensor gravity consistent with polytropic stellar models?
• Cosmic acceleration in asymptotically Ricci flat Universe
• Robust numerical computation of the 3D scalar potential field of the cubic Galileon gravity model at solar system scales
• Vainshtein screening in Horndeski theories nonminimally and kinetically coupled to ordinary matter
• Detection of radiation pressure from solar chameleons
• QCD phase transition with a power law chameleon scalar field in the bulk
• Quantum and thermal pressures from light scalar fields
• Neutrino Velocity and the Variability of Fundamental Constants
• The Cosmological Supersymmetron
• Cosmic acceleration in models with density dependent moduli
• Precision Measurement of the Position-space Wave Functions of Gravitationally Bound Ultracold Neutrons
• Could trapped quintessence account for the laser-detuning-dependent acceleration of cold atoms in varying-frequency time-of-flight experiments?
• The connection between halo concentrations and assembly histories: a probe of gravity?
• Equivalence of scalar-tensor theories and scale-dependent gravity
• The gyroscopic frequency of metric $f(R)$ and generalised Brans-Dicke theories: constraints from Gravity Probe-B
• Screening fifth forces in scalar-vector-tensor theories
• Neutrino flavor oscillations inside matter in conformal coupling models
• Anomalous phosphine sensitivity coefficients as probes for a possible variation of the proton-to-electron mass ratio
• Interior dynamics of neutral and charged black holes in f(R) gravity
• A quantized frequency reference in the short-ranged gravity potential and its application for dark matter and dark energy searches
• Scalar-tensor theories with an external scalar
• Black Hole and Neutron Star Binaries: Theoretical Challenges
• (Non-) geodesic motion in chameleon Brans Dicke model
• A natural cosmological constant from chameleons
• Symmetry restoration in the vicinity of neutron stars with a nonminimal coupling
• Cosmic Evolution in a Modified Brans-Dicke Theory
• Tracker coupled quintessence
• Observational constraints in scalar tensor theory with tachyonic potential
• K-mouflage at high $k$: extending the reach of $\text{Hi-COLA}$
• Constraints on scalar coupling to electromagnetism
• Caustic and hydrostatic mass bias: Implications for modified gravity
• Non-minimal scalar-tensor theories
• Accelerated expansion of a universe containing a self-interacting Bose-Einstein gas
• Chameleon-neutrino conformal coupling and MSW-mediated solar neutrino deficit
• Cosmology in holographic non-minimal derivative coupling theory: constraints from inflation and variation of gravitational constant
• Deflation of Vacuum Energy During Inflation Due to Bulk-Brane Interaction
• What to expect from scalar-tensor space geodesy
• Single scale factor for the universe from the creation of radiation and matter till the present
• Signatures of Solar Chameleons in the Earth's Magnetic Field
• Equatorial orbits and imaging of hairy cubic Galileon black holes
• Can Chameleon fields be the source of both the dark energy dipole and the CMB dipole?
• Reconstructing cosmic evolution with a density parametrization
• Chameleon fields and solar physics
• The cosmological constant problem in heterotic-M-theory and the orbifold of time
• Quartic Chameleons: Safely Scale-Free in the Early Universe
• Interacting Models of Generalised Chaplygin Gas and Modified Chaplygin Gas with Barotropic Fluid
• Spin squeezing enhanced dual species atom interferometric accelerometer employing large momentum transfer for precision test of the equivalence principle
• Imprints of vector field non-standard couplings on solar neutrino flux
• Solar System Experiments in the Search for Dark Energy and Dark Matter
• Experimental Search for Non-Newtonian Forces in the Nanometer Scale with Slow Neutrons
• Euclid: Constraints on f(R) cosmologies from the spectroscopic and photometric primary probes
• Weyl transformation: a dynamical degree of freedom in the light of Dirac's Large Number Hypothesis
• Late-time Cosmology without Dark Sector but with Closed String Massless Sector
• Dynamical Chameleon Neutron Stars: stability, radial oscillations and scalar radiation in spherical symmetry
• Cosmological Time Evolution of the Higgs Mass and Gravitational Waves
• Modified Gravity in the framework of holographic dark energy
• Dark energy without fine tuning
• Galactic dynamics in the presence of scalaron: A perspective from $\mathbf{f}(\mathbf{R})$ gravity
• Stability Analysis of the Cosmological Dynamics of $O(D,D)$-complete Stringy Gravity
• Gravitational Coupling, Dynamical Changes of Units and The Cosmological Constant Problem
• Cosmological Constraints on Radion Evolution in the Universal Extra Dimension Model
• What laboratory experiments can teach us about cosmology: A chameleon example
• A Neutron Star with a Strange Quark Star-like Mass-Radius Relation
• K-nonizing
• Non-canonical 3-form dark energy
• PySCo: A fast Particle-Mesh $N$-body code for modified gravity simulations in Python
• Avoiding Big Rip Singularities in Phantom Scalar Field theory with Gauss-Bonnet term
• Fast Generation of Weak Lensing Maps in Modified Gravity with COLA
• Astro- and Quantum Physical Tests of Screened Scalar Fields
• Thermodynamic modifications to Bardeen black holes surrounded by quintessence based on the new higher order GUP
• Testing Exponential $f(R)$ Gravity with CMB, DESI-DR2, and Supernova Data
• Gravitational Core of Double Field Theory: Lecture Notes
• Lyman-alpha power spectrum as a probe of modified gravity
• A density-responsive scalar-field framework for singularity regularization and dynamical dark energy
• Gravitational wave propagation in generalized hybrid metric-Palatini gravity
• Chameleon Gravity as an Alternative to Dark Matter
• Comments on ${}^{"}$Cosmic evolution in Brans-Dicke chameleon cosmology${}^{"}$
• Construction of f(R) Gravity Models
• Structural Implications of the Chameleon Mechanism on White Dwarfs
• Regular scalar field around reflecting stars and black holes, and reflecting star polarization
• A new approach to modified-gravity models
• Self-acceleration in scalar-bimetric theories
• Higgs-Induced Screening Mechanisms in Scalar-Tensor Theories
• Is it possible to separate baryonic from dark matter within the $\Lambda$-CDM formalism?
• Role of Chameleon Field in presence of Variable Modified Chaplygin gas in Brans-Dicke Theory
• Constraining Yukawa-type interaction and coupling constant of axionlike particles to nucleons from recent measurement of the Casimir-Polder interaction
• An introduction to axions and their detection
• Gravitational waves in massive Horndeski theory with a potential
• Canonical Structure and Hidden Symmetries in Scalar Field Cosmology
• Correspondence between modified gravity and 5D Ricci-flat cosmologies
• Scalarization and superradiant instability of black hole induced by dark matter halo in the scalar-tensor theory of gravity
• Refining fundamental constants with white dwarfs: machine learning informed constraints on fine-structure constant and proton-to-electron mass ratio
• Finding BSM Needles in Electromagnetic Haystacks at DUNE
• Chameleon Effects on Small Scale Structure and the Baryonic Jeans Mass
• CMB Constraint on Radion Evolution in the Brane World Scenario
• Exceeding the conformal limit inside rotating neutron stars: Implications to modified theories of gravity
• Searching for Chameleon-like Scalar Fields
• Fifth forces and discrete symmetry breaking
• Galaxy clustering in modified gravity from full-physics simulations. I: two-point correlation functions
• Equivalence Principle on Cosmological Backgrounds in Scalar-Tensor Theories
• Supporting Abstract Relational Space-Time as Fundamental without Doctrinism against Emergence
• Cosmological and astrophysical applications of modified theories of gravity
• Metric Expansion from Microscopic Dynamics in an Inhomogeneous Universe
• Breaking the cosmological invariance of the dark matter halos shape as a new probe of modified gravity
• Vainshtein mechanism in general purely disformal gravity theory
• Quantum corrections to symmetron fifth-force profiles
• Long distance modifications of gravity in four dimensions
• Geodesics in Quantum Gravity
• Solar System and Atomic Clock Bounds on Locally Coupled Swampland Scalars
• Constraining runaway dilaton models using joint gravitational-wave and electromagnetic observations
• Post-Newtonian Constraints on Scalar-Tensor Gravity
• On Generalized Theories of Varying Fine Structure Constant
• The Yukawa potential of a non-homogeneous sphere, with new limits on an ultralight boson
• Lepton Number Violating Electron Recoils in a $U(1{)}_{B-L}$ Model with Non-Standard Interactions
• Investigating a Possible Variation of the Gravitational Constant Through Gas Mass Fraction Measurements and Type Ia Supernovae Observations
• Violation of the equivalence principle from light scalar fields: from Dark Matter candidates to scalarized black holes
• Analysing the Effect on CMB in a Parity and Charge Parity Violating Varying Alpha Theory
• Modified Power law Inflation: solution to the graceful exit problem and improvement of dark energy models
• Chronons in M-theory and F-theory
• Globally Stable Dark Energy in $F(R)$ Gravity
• Distinguishing gravity theories with networks of space-based gravitational-wave detectors
• Is Dark Energy an Effective Manifestation of Non-equilibrium Thermodynamics? -- Insights from DESI
• The read-out electronics for the FLASH experiment
• Perturbations In Some Dark Energy Models
• Quantum Physics in Space
• Screening Solutions in Modified Gravity Theories
• Post-Newtonian N-Body Dynamics in Extended Theories of Gravity
• Testing the growth of cosmic structures during the Dark Ages
• Non-canonical scalar field in low anisotropy universe with intermediate inflation
• Geometric Matching of Local Static Regions in Cosmological Spacetimes with an Evolving Lapse
• Quantum mechanics before the big bang in heterotic-M-theory
• Luminosity-Temperature Relation as a Probe for Modified Gravity
• Implications of a high growth index on the variation of $G$
• Straight and Wiggly Cosmic Strings in Horndeski Theory
• Chameleon gravity and satellite geodesy
• CLASH-VLT: The Fifth Force in Chameleon Gravity from Joint Lensing and Kinematics Cluster Mass Profiles
• Tracing Signatures of Modified Gravity in Redshift-Space Galaxy Bispectrum Multipoles: Prospects for Euclid
• Scalar Cherenkov radiation from high-energy cosmic rays