Dynamical system analysis of scalar field cosmology in coincident f (Q) gravity
In this article, we investigate scalar field cosmology in the coincident f (Q) gravity formalism.
We calculate the motion equations of f (Q) gravity under the flat Friedmann-Lemaître …
We calculate the motion equations of f (Q) gravity under the flat Friedmann-Lemaître …
Dynamics of a higher-dimensional Einstein–Scalar–Gauss–Bonnet cosmology
We study the dynamics of the field equations in a five-dimensional spatially flat Friedmann–
Lemaître–Robertson–Walker metric in the context of a Gauss–Bonnet–Scalar field theory …
Lemaître–Robertson–Walker metric in the context of a Gauss–Bonnet–Scalar field theory …
[HTML][HTML] Fractional Einstein–Gauss–Bonnet Scalar Field Cosmology
Our paper introduces a new theoretical framework called the Fractional Einstein–Gauss–
Bonnet scalar field cosmology, which has important physical implications. Using fractional …
Bonnet scalar field cosmology, which has important physical implications. Using fractional …
Cosmological time crystals from Gauss-Bonnet gravity in four dimensions
H Khodabakhshi, F Shojai, H Lü - Journal of Cosmology and …, 2024 - iopscience.iop.org
We investigate various cosmological aspects of a 4-Dimensional Gauss-Bonnet Lagrangian,
which is integrated into the Einstein Lagrangian with an arbitrary sign, using the Friedman …
which is integrated into the Einstein Lagrangian with an arbitrary sign, using the Friedman …
Observational constraints on extended Proca-Nuevo gravity and cosmology
FK Anagnostopoulos, EN Saridakis - Journal of Cosmology and …, 2024 - iopscience.iop.org
Abstract We confront massive Proca-Nuevo gravity with cosmological observations. The
former is a non-linear theory involving a massive spin-1 field, that can be extended …
former is a non-linear theory involving a massive spin-1 field, that can be extended …
Non-minimally coupled quintessence in the Gauss-Bonnet model, symmetry breaking, and cosmic acceleration
HM Sadjadi - arxiv preprint arxiv:2310.03697, 2023 - arxiv.org
We consider a model consisting of a quintessence coupled to the Ricci scalar and the Gauss-
Bonnet invariant. We propose a mechanism for the rising of dark energy in the matter era …
Bonnet invariant. We propose a mechanism for the rising of dark energy in the matter era …
[HTML][HTML] Revise the Phase-Space Analysis of the Dynamical Spacetime Unified Dark Energy Cosmology
A Paliathanasis - Universe, 2023 - mdpi.com
We analyze the phase-space of an alternate scalar field cosmology that aims to combine the
concepts of dark energy and the dark sector. The investigation focuses on stationary points …
concepts of dark energy and the dark sector. The investigation focuses on stationary points …
New insights from GW170817 in the dynamical system analysis of Einstein Gauss–Bonnet gravity
In this work, we explore the dynamical system phase space of Einstein–Gauss–Bonnet
theory in the cosmological minisuperspace in the light of GW170817. This approach binds …
theory in the cosmological minisuperspace in the light of GW170817. This approach binds …
CDM-like evolution in Einstein-scalar-Gauss-Bonnet gravity
In this work, we analyze the Einstein-scalar-Gauss-Bonnet (EsGB) theory of gravity in a
cosmological context using the formalism of dynamical systems. We obtain the equations of …
cosmological context using the formalism of dynamical systems. We obtain the equations of …
[PDF][PDF] Fractional Einstein–Gauss–Bonnet Scalar Field Cosmology. Fractal Fract. 2024, 8, 626
Our paper introduces a new theoretical framework called the Fractional Einstein–Gauss–
Bonnet scalar field cosmology, which has important physical implications. Using fractional …
Bonnet scalar field cosmology, which has important physical implications. Using fractional …