11 Results Found

In this paper, we present an analysis of a chiral cosmological scenario from the perspective of K-essence formalism. In this setup, several scalar fields interact within the kinetic and potential sectors. However, we only consider a flat Friedmann&nd...

In this paper, we study anisotropic exact solutions in the homogeneous Bianchi I background geometry in a multifield theory. Specifically, we consider the Chiral–Quintom theory, which is an extension of the Chiral theory, because at least one o...

We consider a cosmological model in the framework of Einstein–Cartan theory with a single scalar torsion $\varphi =\varphi \left(t\right)$ and reconstruct the torsion model corresponding to the holographic dark energy (HDE) density. By studying the correspondin...

This work is focused on studying the cosmology of variable modified Chaplygin gas (VMCG) in the framework of exponential and logarithmic $f\left(T\right)$ theory. The equation of state (EoS) for VMCG in exponential and logarithmic $f\left(T\right)$ gravity shows quintom behav...

The laminar constant-velocity superflow of a physical vacuum modelled by logarithmic quantum Bose liquid is considered. We demonstrate that this three-dimensional non-relativistic quantum flow generates a four-dimensional relativistic quinton system,...

We construct and examine a holonomy-corrected chiral fields model of cosmological relevance. Specifically, we holonomize the Hamiltonian corresponding to a quintom field scenario with additional kinetic interaction (governed by the constant chiral me...

We investigate in this paper the static radial coordinate-dependent spherically symmetric spacetime in teleparallel $F\left(T\right)$ gravity for a scalar field source. We begin by setting the static field equations (FEs) to be solved and solve the conservation l...

This paper investigates the teleparallel Robertson–Walker (TRW) $F\left(T\right)$ gravity solutions for a scalar field source. We use the TRW $F\left(T\right)$ gravity field equations (FEs) for each k-parameter value case added by a scalar field to find new teleparallel...

In this paper, we investigate time-dependent Kantowski–Sachs spherically symmetric teleparallel $F\left(T\right)$ gravity with a scalar field source. We begin by setting the exact field equations to be solved and solve conservation laws for possible scalar...

The present study reports a reconstruction scheme for $f\left(R\right)$ gravity with the scale factor $a\left(t\right)\propto {(t_{*}-t)}^{\frac{2}{c^2}}$ describing the pre-bounce ekpyrotic contraction, where $t_{*}$ is the big crunch time. The reconstructed $f\left(R\right)$ is used to derive expressions...

This paper investigates the impact of bulk viscosity within the framework of $f(T,B)$ gravity. We consider a time-dependent viscosity model with a particular Hubble parameter expression. Here, we looked into the viability of well-motivated $f(T,B)$ gravi...