Axially Symmetric Cosmological Model in f(Q,T) Gravity
Abstract
This article is devoted to the study of the dynamical aspects of the domain wall cosmological model in an axially symmetric space-time in f(Q,T) gravity. In this theory of gravity, the action contains an arbitrary function f(Q,T) where Q and T respectively denote the non-metricity and the trace of energy momentum tensor. The linear and additive form of f(Q,T) gravity, f(Q,T) = μQ + νT where μ and ν are non-zero arbitrary constants, is taken into account in this work. A deterministic model of the universe is obtained using the linearly varying deceleration parameter q = -kt+m-1 which is linear in time with negative slope. We have assessed all the dynamical and geometrical parameters of the models and examined their physical significance in modern cosmology. We have observed that the deceleration parameter displays a signature-flipping point where shifting occurs from a decelerating regime to an accelerating regime, signifying cosmic expansion. It is observed that our model is in good agreement with the current scenario of accelerated expansion of the universe.
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