Journal ArticleDOI
Isotropization and homogenization of an anisotropic and inhomogeneous cosmological model during the inflationary era.
TLDR
The class of anisotropic and inhomogeneous cosmological solutions of the Einstein field equations with a perfect fluid source obeying an equation of state p = ..gamma…rho, 0<..gamma..Abstract:
The class of anisotropic and inhomogeneous cosmological solutions of the Einstein field equations with a perfect fluid source obeying an equation of state p = ..gamma..rho, 0<..gamma..read more
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Journal ArticleDOI
Inhomogeneous cosmological models: exact solutions and their applications
TL;DR: In this article, the importance of an inhomogeneous framework in the analysis of cosmological observations is discussed and a review of the recent developments in the field is presented, which shows that inhomogeneities are not an alternative to the FLRW models, but an exact perturbation of the latter.
Journal ArticleDOI
A quantum gravitational inflationary scenario in Bianchi-I spacetime
Brajesh Gupt,Parampreet Singh +1 more
TL;DR: In this article, the authors investigated the 2 inflationary model in the Bianchi-I spacetime using the effective spacetime description of loop quantum cosmology to understand the issues of the resolution of initial singularity, isotropization, effect of anisotropies on the amount of inflation, and the phase-space attractors in the presence of nonperturbative quantum gravitational modifications.
Journal Article
Quantum gravitational inflationary scenario in Bianchi-I spacetime
Brajesh Gupt,Parampreet Singh +1 more
TL;DR: In this paper, the authors investigated the 2 inflationary model in the Bianchi-I spacetime using the effective spacetime description of loop quantum cosmology to understand the issues of the resolution of initial singularity, isotropization, effect of anisotropies on the amount of inflation, and the phase-space attractors in the presence of nonperturbative quantum gravitational modifications.
Journal ArticleDOI
Constructing realistic Szekeres models from initial and final data
Anthony Walters,Charles Hellaby +1 more
TL;DR: In this article, a model construction procedure for the quasispherical case using given data at initial and final times is presented for the Szekeres family of inhomogeneous solutions, which are defined by six arbitrary metric functions.
Journal ArticleDOI
Bianchi Type I Cosmological Models in Eddington-inspired Born-Infeld Gravity
TL;DR: In this article, the authors consider the dynamics of a barotropic cosmological fluid in an anisotropic Bianchi type I space-time in Eddington-inspired Born-Infeld (EiBI) gravity.
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