Stability of the Einstein static universe in f(RT) gravity

H Shabani, AH Ziaie - The European Physical Journal C, 2017 - Springer
The Einstein static (ES) universe has played a major role in various emergent scenarios
recently proposed in order to cure the problem of the initial singularity of the standard model …

Emergent universe from energy–momentum squared gravity

M Khodadi, A Allahyari, S Capozziello - Physics of the Dark Universe, 2022 - Elsevier
In order to bypass the big bang singularity, we develop an emergent universe scenario
within a covariant extension of General Relativity known as “Energy–Momentum Squared …

Stability of the Einstein Static Universe in Gauss-Bonnet Gravity

SL Li, P Wu, H Yu - arxiv preprint arxiv:2004.02080, 2020 - arxiv.org
By rescaling the Gauss-Bonnet (GB) coupling constant $\alpha\rightarrow\alpha/(D-4) $ and
considering the $ D\rightarrow 4$ limit, the GB gravity gives rise to nontrivial modification of …

Singularity free cosmological models in viscous symmetric teleparallel gravity

MM Gohain, K Bhuyan - Physics of the Dark Universe, 2024 - Elsevier
In this paper, we have investigated the possibility of deriving exact non-singular
cosmological solutions in a combined scenario of bulk viscous fluid and symmetric …

Einstein static universe in the Rastall theory of gravity

F Darabi, K Atazadeh, Y Heydarzade - The European Physical Journal …, 2018 - Springer
We investigate stability of the Einstein static solution against homogeneous scalar, vector
and tensor perturbations in the context of the Rastall theory of gravity. We show that this …

Stability of the Einstein static universe in Eddington-inspired Born-Infeld theory

SL Li, H Wei - Physical Review D, 2017 - APS
By considering the realization of the emergent universe scenario in Eddington-inspired Born-
Infeld (EiBI) theory, we study the stability of the Einstein static universe filled with perfect fluid …

Emergent scenario in the Einstein-Cartan theory

Q Huang, P Wu, H Yu - Physical Review D, 2015 - APS
We study the emergent scenario, which is proposed to avoid the big bang singularity, in the
Einstein-Cartan (EC) theory with a positive cosmological constant and a perfect fluid by …

Einstein static universe from GUP

K Atazadeh, F Darabi - Physics of the dark universe, 2017 - Elsevier
We consider the existence and stability of the Einstein static universe under the Generalized
Uncertainty Principle (GUP) effects. We show that this solution in the presence of perfect …

Instability of the Einstein static universe in modified Gauss-Bonnet gravity

H Huang, P Wu, H Yu - Physical Review D, 2015 - APS
In this paper, we investigate the stability of the Einstein static universe sourced by a single
perfect fluid with a constant equation of state against homogeneous and inhomogeneous …

Emergent universe in theories with natural UV cutoffs

M Khodadi, K Nozari, EN Saridakis - Classical and Quantum …, 2017 - iopscience.iop.org
We investigate the realization of the emergent universe scenario in theories with natural UV
cutoffs, namely a minimum length and a maximum momentum, quantified by a new …