Anisotropic Universe in $f(Q,T)$ gravity, a novel study

Abstract

$f(Q,T)$ theory of gravity is very recently proposed to incorporate within the action Lagrangian, the trace $T$ of the energy-momentum tensor along with the non-metricity scalar $Q$. The cosmological application of this theory in a spatially flat isotropic and homogeneous Universe is well-studied. However, our Universe is not isotropic since the Planck era and therefore to study a complete evolution of the Universe we must investigate the $f(Q,T)$ theory in a model with a small anisotropy. This motivated us to presume a locally rotationally symmetric (LRS) Bianchi-I spacetime and derive the motion equations. We analyse the model candidate $f(Q,T)=\alpha Q^{n+1}+\beta T$, and to constrain the parameter $n$, we employ the statistical Markov chain Monte Carlo (MCMC) method with the Bayesian approach using two independent observational datasets, namely, the Hubble datasets, and Type Ia supernovae (SNe Ia) datasets.

AOP accepted version

References in corpus (48)

• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Modified Gravity and Cosmology
• f(R) theories
• f(R,T) gravity
• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• Constraints on the redshift dependence of the dark energy potential
• A 6% measurement of the Hubble parameter at $z\sim 0.45$: direct evidence of the epoch of cosmic re-acceleration
• Cosmic Chronometers: Constraining the Equation of State of Dark Energy. I: H(z) Measurements
• Raising the bar: new constraints on the Hubble parameter with cosmic chronometers at z$\sim$2
• Improved constraints on the expansion rate of the Universe up to z~1.1 from the spectroscopic evolution of cosmic chronometers
• Constraining Cosmological Parameters Based on Relative Galaxy Ages
• Coincident General Relativity
• Age-dating Luminous Red Galaxies observed with the Southern African Large Telescope
• $f(Q,T)$ gravity
• Hubble Parameter and Baryon Acoustic Oscillation Measurement Constraints on the Hubble Constant, the Deviation from the Spatially-Flat $\Lambda$cdm Model, The Deceleration-Acceleration Transition Redshift, and Spatial Curvature
• Cosmological solutions and growth index of matter perturbations in $f(Q)$ gravity
• First evidence that non-metricity f(Q) gravity could challenge $\Lambda$CDM
• Kasner and Mixmaster behavior in universes with equation of state w \ge 1
• Teleparallel Palatini theories
• $H_0$ from cosmic chronometers and Type Ia supernovae, with Gaussian Processes and the novel Weighted Polynomial Regression method
• f(R,T) Cosmological Models in Phase Space
• Covariant formulation of f(Q) theory
• Testing $F(Q)$ gravity with redshift space distortions
• Locally Rotationally Symmetric Bianchi Type $I$ Cosmology in $f(R,T)$ Gravity
• Lagrange formulation of the symmetric teleparallel gravity
• Can $f(Q)$ gravity challenge $\Lambda$CDM?
• $f(Q,T)$ gravity models with observational constraints
• Baryogenesis in $f(Q,\mathcal{T})$ Gravity
• Anisotropic nature of space-time in $f(Q)$ gravity
• Observational constraints on Hubble constant and deceleration parameter in power-law cosmology
• Dynamical system analysis for accelerating models in non-metricity $f(Q)$ gravity
• Revisiting Cosmologies in Teleparallelism
• Cosmological Constraints on Horndeski Gravity in Light of GW170817
• Isotropization of locally rotationally symmetric Bianchi-I universe in $f(Q)$-gravity
• Family of scalar-nonmetricity theories of gravity
• Late-time acceleration in $f\left(Q\right)$ gravity: Analysis and constraints in an anisotropic background
• Constraints on cosmological parameters in power-law cosmology
• Inflation in $f(R,T)$ Gravity
• Cosmology in modified $f(R,T)$-gravity
• Accelerating Universe scenario in anisotropic $f\left(Q\right)$ cosmology
• Current Constraints on Anisotropic and Isotropic Dark Energy Models
• Reconstructing Horndeski theories from phenomenological modified gravity and dark energy models on cosmological scales
• Probing Dark Energy in The scope of Bianchi type I Spacetime
• Comment on "Energy conditions in $f(Q)$ gravity"
• Geodesic Deviation Equation In $f(Q)$-Gravity
• Viscous Dark Energy In Bianchi Type V Space-Time
• Cosmological models in modified gravity theories with extended nonminimal derivative couplings
• Bianchi spacetimes as super-curvature modes around isotropic cosmologies

Cited by in corpus (9)

• Existence of Wormhole Solutions in $f(Q,T)$ Gravity under Non-commutative Geometries
• Exploring accelerated expansion in the universe: A study of $f(Q,T)$ gravity with parameterized EoS and cosmological constraints
• Impact of dark matter galactic halo models on wormhole geometry within $f(Q,T)$ gravity
• The dynamics of matter bounce cosmology in Weyl-type $f(Q,T)$ gravity
• Constraints on anisotropic properties of the universe in $f(Q,T)$ gravity theory
• Conformally symmetric wormhole solutions supported by non-commutative geometries in the context of $f(Q,T)$ gravity
• Observational Constraints on Hybrid Scale Factor in f(Q,T) Gravity with Anisotropic Space-Time
• Impact of Non-metricity and Matter Source on the Geometry of Anisotropic Spheres
• Investigating the compatibility of exact solutions in Weyl-type $f(Q,T)$ gravity with observational data