Perfect Fluid with Heat Flow in f(T) Theory of Gravity

• Published in: East European journal of physics no. 1; pp. 102 - 111
• Main Authors: Pawar, D.D., Ghungarwar, N.G., Gaikwad, P.S.
• Format: Journal Article
• Language: English
• Published: V.N. Karazin Kharkiv National University Publishing 05.03.2024
• Subjects: bianchi type-i; f(t) theory; perfect fluid with heat flow
• ISSN: 2312-4334; 2312-4539
• DOI: 10.26565/2312-4334-2024-1-08

Bianchi Type-I cosmological models have been a subject of extensive research in cosmology due to their simplicity and relevance in understanding the dynamics of the early Universe. In this study, we investigate the dynamics of such models within the framework of f(T) gravity, an alternative theory of gravity that extends teleparallel gravity by introducing a general function of the torsion scalar, T. We focus on the presence of a perfect fluid with heat flow in the cosmic medium. By solving the field equations of f(T) gravity, we obtain exact solutions for the Bianchi Type-I cosmological models. These solutions provide valuable insights into the evolution of the Universe and how it is influenced by the modified gravity theory. Furthermore, we derive cosmological parameters in terms of redshift, offering a convenient way to interpret observational data and connect theoretical predictions to empirical measurements. Our findings not only contribute to a deeper understanding of the dynamics of Bianchi Type-I cosmological models but also  provide a foundation for comparing f(T) gravity with standard general relativity in the context of observational cosmology. This research paves the way for further exploration of alternative gravity theories and their implications for the early Universe’s evolution and structure.