Signatures of $f(Q)$-gravity in cosmology

Abstract

We investigate the impact on cosmological observables of $f(Q)$-gravity, a specific class of modified gravity models in which gravity is described by the non-metricity scalar, $Q$. In particular we focus on a specific model which is indistinguishable from the $\Lambda$-cold-dark-matter ($\Lambda$CDM) model at the background level, while showing peculiar and measurable signatures at linear perturbation level. These are attributed to a time-dependent Planck mass and are regulated by a single dimensionless parameter, $\alpha$. In comparison to the $\Lambda$CDM model, we find for positive values of $\alpha$ a suppressed matter power spectrum and lensing effect on the Cosmic Microwave Background radiation (CMB) angular power spectrum and an enhanced integrated-Sachs-Wolfe tail of CMB temperature anisotropies. The opposite behaviors are present when the $\alpha$ parameter is negative. We also investigate the modified Gravitational Waves (GWs) propagation and show the prediction of the GWs luminosity distance compared to the standard electromagnetic one. Finally, we infer the accuracy on the free parameter of the model with standard sirens at future GWs detectors.

8 pages, 6 figures, accepted for publication in PRD

References in corpus (17)

• Dynamics of dark energy
• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• Laser Interferometer Space Antenna
• Beyond the Cosmological Standard Model
• Baryon Acoustic Oscillations in the Lyα forest of BOSS DR11 quasars
• Horndeski theory and beyond: a review
• Scientific Objectives of Einstein Telescope
• Approaches to Understanding Cosmic Acceleration
• Observational constraints on $f(T)$ theory
• Searching for modified growth patterns with tomographic surveys
• Anisotropic stress as signature of non-standard propagation of gravitational waves
• Testing gravity with CAMB and CosmoMC
• Testing $F(Q)$ gravity with redshift space distortions
• Bouncing Cosmology in f(Q) Symmetric Teleparallel Gravity
• Cosmological Constraints on f(R) Acceleration Models
• MGCAMB with massive neutrinos and dynamical dark energy

Cited by in corpus (86)

• Cosmology with the Laser Interferometer Space Antenna
• New Horizons for Fundamental Physics with LISA
• First evidence that non-metricity f(Q) gravity could challenge $\Lambda$CDM
• Covariant formulation of f(Q) theory
• Wormhole solutions in symmetric teleparallel gravity
• Wormhole geometries in $f(Q)$ gravity and the energy conditions
• General covariant symmetric teleparallel cosmology
• Can $f(Q)$ gravity challenge $\Lambda$CDM?
• Cosmology in $f(Q)$ gravity: A unified dynamical system analysis at background and perturbation levels
• New models and Big Bang Nucleosynthesis constraints in $f(Q)$ gravity
• Anisotropic nature of space-time in $f(Q)$ gravity
• Revisiting Cosmologies in Teleparallelism
• Slow-roll inflation in $f(Q)$ non-metric gravity
• A designer approach to $f(Q)$ gravity and cosmological implications
• Wormhole in $f(Q)$ gravity
• Paramerization of deceleration parameter in $f(Q)$ gravity
• Non-metricity with bounday terms: $f(Q,C)$ gravity and cosmology
• Modified gravity: a unified approach
• A class of static spherically symmetric solutions in $f(Q)$-gravity
• Late-time cosmology with phantom dark-energy in $f(Q)$ gravity
• Anisotropic Strange Star Model Beyond Standard Maximum Mass Limit by Gravitational Decoupling in $f(Q)$ Gravity
• Static spherically symmetric wormholes in $f(Q,T)$ gravity
• Reconstructing isotropic and anisotropic $f(\mathcal{Q})$ cosmologies
• Cosmological observational constraints on the power law $f(Q)$ type modified gravity theory
• Forecasting constraints on deviations from general relativity in $f(Q)$ gravity with standard sirens
• Traversable wormholes with charge and non-commutative geometry in the $f(Q)$ gravity
• On the viability of $f(Q)$ gravity models
• Non-Local Gravity Wormholes
• Model parameters in the context of late time cosmic acceleration in $f(Q,T)$ gravity
• Phantom cosmological model with observational constraints in $f(Q)$ gravity
• Data reconstruction of the dynamical connection function in $f(Q)$ cosmology
• Crossing phantom divide in $f(Q)$ gravity
• Phase-space analysis of a novel cosmological model in $f(Q)$ theory
• Forecasting F(Q) cosmology with $\Lambda$CDM background using standard sirens
• An Axially Symmetric Transitioning models with Observational Constraints
• Symmetric Teleparallel Horndeski Gravity
• Modelling the Accelerating Universe with $f(Q)$ Gravity: Observational Consistency
• $f(Q)$-gravity and neutrino physics
• Testing $\Lambda$-Free f(Q) Cosmology
• Energy condition bounds on $f(Q)$ model parameters in a curved FLRW universe
• Nonmetricity theories and aspects of gauge symmetry
• Gaussian Process Approach for Model-Independent Reconstruction of $f(Q)$ Gravity with Direct Hubble Measurements
• Constraints on $f(Q)$ logarithmic model using gravitational wave standard sirens
• How different connections in flat FLRW geometry impact energy conditions in $f(Q)$ theory?
• Anisotropic f(Q) gravity model with bulk viscosity
• Neutron Star in Covariant $f(Q)$ gravity
• Equivalence of $f(Q)$ cosmology with quintom-like scenario: the phantom field as effective realization of the non-trivial connection
• Black holes and regular black holes in coincident $f(\mathbb{Q},{\mathbb{B}}_Q)$ gravity coupled to nonlinear electrodynamics
• Study of Viable Compact Stellar Structures in Non-Riemannian Geometry
• Observational Constraints on Hybrid Scale Factor in f(Q,T) Gravity with Anisotropic Space-Time
• Deflection of light by wormholes and its shadow due to dark matter within modified symmetric teleparallel gravity formalism
• Tensor Perturbations from Bounce Inflation Scenario in f(Q) Gravity
• Myrzakulov $F(T,Q)$ gravity: cosmological implications and constraints
• Cosmological study of a symmetric teleparallel gravity model
• Spinor fields in $f(\mathcal{Q})$-gravity
• Thick braneworld model in nonmetricity formulation of general relativity and its stability
• Bulk viscous fluid in symmetric teleparallel cosmology: theory versus experiment
• Barrow holographic dark energy models in $f\left(Q\right)$ symmetric teleparallel gravity with Lambert function distribution
• Exploring Modified Gravity: Constraints on the $\mu$ and $\Sigma$ Parametrization with WMAP, ACT, and SPT
• Analysis of the cosmological evolution parameters, energy conditions, and linear matter perturbations of an exponential-type model in $f(Q)$ gravity
• Weyl transverse diffeomorphism invariant theory of symmetric teleparallel gravity
• Symmetric Teleparallel Gauss-Bonnet Gravity and its Extensions
• Statistical and Observation Comparison of Weyl-Type $f(Q,T)$ Models with the $\Lambda$CDM Paradigm
• Observational constraints on the growth index parameters in $f(Q)$ gravity
• Modified Teleparallel $f(T)$ Gravity, DESI BAO and the $H_0$ Tension
• Charged black hole solutions in $f(R,T)$ gravity coupled to nonlinear electrodynamics
• Cosmological implications of non-minimally coupled f(Q) gravity
• Gravitational Wave luminosity distance in viscous cosmological models
• Magnetic Suppression of Cosmic Rays' Flux in $\mathbf{f}(\mathbf{R})$ and $\mathbf{f}(\mathbf{Q})$ Theories of Gravity
• Probing symmetric teleparallel gravity in the early universe
• Cosmological dynamics of interacting dark energy and dark matter in $f(Q)$ gravity
• Vulnerability of f(Q) gravity theory and a possible resolution
• A note on the junction conditions in f(Q)-gravity
• Analysing Ultra High Energy Cosmic Rays' Anisotropy in $\mathbf{f}(\mathbf{R},\mathbf{T})$ Gravity Theory
• Phase space analysis of an exponential model in $f(Q)$ gravity including linear dark-sector interactions
• Qualitative analysis of a quasi-magnetic universe
• Scalar perturbation and density contrast evolution in $f(Q,C)$ gravity
• Issue of Branched Hamiltonian, Inflation and indispensability of scalar field in generalized Teleparallel theories
• Condensed body mass accretion with DBI-essence dark energy and its reconstruction with f(Q) gravity
• Dynamics of Linear Scalar Perturbation in f(Q)+f(T) class of f(Q,T) gravity
• Insights in $f(Q)$ cosmology: the relevance of the connection
• Stability Analysis of Four $f(Q)$ Gravity Models : A Cosmological Review in the Background of Bianchi-I Anisotropy
• Beyond the Cosmological Constant: Breaking the Geometric Degeneracy of $f(Q)$ cosmology via Redshift-Space Distortions
• Cosmological Constraints on the DGP Model in light of DESI DR2 2025 Data
• Scale-Invariant Bounce Cosmology in Weyl f(Q) Gravity with Quintom Signature
• Quantum Cosmology in $f(Q)$ theory