Topological defects in f(T) theory of gravity

S. P. Hatkar; D. P. Tadas; S. D. Katore

doi:10.1140/epjc/s10052-025-13800-2

EPJ

a
b
c
d
e
ap
st
h
plus
ds
pv
ti
qt
am
n

2023 Impact factor 4.2

Particles and Fields

Open Access

Eur. Phys. J. C (2025) 85: 150
https://doi.org/10.1140/epjc/s10052-025-13800-2

Regular Article - Theoretical Physics

Topological defects in f(T) theory of gravity

S. P. Hatkar¹, D. P. Tadas²^a and S. D. Katore³

¹ Department of Mathematics, A.E.S. Arts, Commerce and Science College, 431513, Hingoli, India
² Department of Mathematics, Toshniwal Arts, Commerce and Science College, 431542, Sengaon, India
³ Department of Mathematics, Sant Gadge Baba Amravati University, 444602, Amravati, India

^a dtadas144@rediffmail.com

Received: 25 October 2024
Accepted: 28 December 2024
Published online: 5 February 2025

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) $q = - k t + l - 1$ $$q=-kt+l-1$$ , (ii) $q = b (t)$ $$q=b(t)$$ , and (iii) $q = - 1 + \frac{γ}{1 + a^{γ}}$ $q=-1+\frac{\gamma }{1+a^\gamma }$ , 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.

© The Author(s) 2025

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.