Topological defects in f(T) theory of gravity

Abstract In this paper, we investigate the behaviour of domain walls and one-dimensional cosmic string with locally rotationally symmetric (LRS) Bianchi type-I metric in the context of f(T) gravity. Three different types of deceleration parameter (DP) forms, such as (i) $$q=-kt+l-1$$ q = - k t + l -...

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Bibliographic Details
Main Authors: S. P. Hatkar, D. P. Tadas, S. D. Katore
Format: Article
Language:English
Published: SpringerOpen 2025-02-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-025-13800-2
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Summary:Abstract In this paper, we investigate the behaviour of domain walls and one-dimensional cosmic string with locally rotationally symmetric (LRS) Bianchi type-I metric in the context of f(T) gravity. Three different types of deceleration parameter (DP) forms, such as (i) $$q=-kt+l-1$$ q = - k t + l - 1 , (ii) $$q=b(t)$$ q = b ( t ) , and (iii) $$q=-1+\frac{\gamma }{1+a^\gamma }$$ q = - 1 + γ 1 + a γ , are used to determine the exact solution of the field equation. We observe the profound effect of the torsion scalar T on physical parameters. Also, the universe was dominated by string at an early stage of evaluation.
ISSN:1434-6052