8 citations · 10 across the 8 of their papers we have counts for
9 papers
Observational constraints on a non-minimally coupled scalar field in non-metricity gravity with an extra degree of freedom
Saddam Hussain, Ghulam Murtaza, Avik De
We investigate a non-minimally coupled scalar field in non-metricity gravity, adopting a non-trivial connection class in spatially flat FLRW spacetimes. In contrast to the coincide…
Observational constraints on scalar-nonmetricity cosmology: the role of the connection
Ghulam Murtaza, Avik De, Emmanuel N. Saridakis
Scalar-nonmetricity gravity provides a natural scalar-tensor extension of symmetric teleparallel gravity, with the gravitational interaction encoded in nonmetricity. A distinctive…
The role of anisotropy in gravity: insights from cosmological observations
Ghulam Murtaza, Nandan Roy, Avik De
We investigate the cosmological dynamics of Bianchi-I spacetime in symmetric teleparallel gravity through a dynamical system approach to analyse observational constraints. B…
Scalar field coupled to boundary in non-metricity: a new avenue towards dark energy
Ghulam Murtaza, Avik De, Tee-How Loo +1
While conformal transformations in metric scalar-tensor theories recover General Relativity, this feature is notably absent in standard non-metricity-based theories. We demonstrate…
Scalar-Tensor Symmetric Teleparallel Gravity: Reconstruct the Cosmological History with a Steep Potential
Ghulam Murtaza, Avik De, Andronikos Paliathanasis
Within the framework of scalar-non-metricity gravity, we introduce a steep potential together with a power-law coupling function and investigate whether the acceleration phases of…
Role of the Dynamic Degree of Freedom in Scalar-Tensor Non-Metricity Gravity with Curved FLRW Geometry
Ghulam Murtaza, Avik De, Andronikos Paliathanasis
We investigate a non-minimally coupled scalar field theory within the framework of scalar-tensor non-metricity gravity, focusing on spatially curved FLRW spacetimes. Employing the…
Can an Extra Degree of Freedom in Scalar-Tensor Non-Metricity Gravity Account for the Evolution of the Universe?
Ghulam Murtaza, Avik De, Andronikos Paliathanasis +1
We investigate whether the extra scalar degree of freedom that arises in the second connection class of scalar-tensor non-metricity gravity can accurately replicate and potentially…
Phase-space analysis of an anisotropic universe in gravity
Ghulam Murtaza, Avik De, Tee-How Loo +2
In this study, we analyze the anisotropic universe in gravity theory. To achieve this, we consider three specific models of gravity and rewrite the equations of m…
A generic dynamical system formulation for Bianchi-I cosmology with isotropic fluid in gravity
Ghulam Murtaza, Saikat Chakraborty, Avik De
In this article, we present a generic dynamical system formulation for Bianchi-I cosmology in the presence of an isotropic fluid within the coincident gauge connection branch and o…