Scalar Fields for Bianchi-I Model in $\boldsymbol{f(R,T)}$ Theory of Gravity

IF 1.2 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS Gravitation and Cosmology Pub Date : 2024-05-21 DOI:10.1134/S0202289324700117

Yasemin Kabaoğlu, Can Aktaş

引用次数: 0

Abstract

In physics and cosmology, scalar fields are considered basic. In this study, we are interested to inspect the conduct of massless scalar field (SF) and massive scalar field (MSF) models in $f(R,T)$ theory for Bianchi-I universe models. We discuss two cosmological models with respect to late cosmic acceleration, using constant scalar potential and exponential scalar potential models. Also, we study the behavior of a massive scalar field. Finally, we obtain our results in $f(R,T)$ and general relativity (GR). In addition, we obtained an LRS Bianchi-I metric as a result of the solutions we made and selection of special constants.

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$$\boldsymbol{f(R,T)}$$ 引力理论中比安奇-I 模型的标量场

在物理学和宇宙学中，标量场被认为是基本的。在这项研究中，我们有兴趣考察无质量标量场（SF）和大质量标量场（MSF）模型在（f(R,T)）理论中对比安奇-I宇宙模型的传导。我们使用恒定标量势模型和指数标量势模型讨论了晚期宇宙加速的两种宇宙学模型。此外，我们还研究了大质量标量场的行为。最后，我们得到了在（f(R,T)）和广义相对论（GR）中的结果。此外，由于我们所做的求解和特殊常数的选择，我们得到了一个 LRS Bianchi-I 度量。

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来源期刊

Gravitation and Cosmology ASTRONOMY & ASTROPHYSICS-

CiteScore

1.70

自引率

22.20%

发文量

审稿时长

>12 weeks

期刊介绍： Gravitation and Cosmology is a peer-reviewed periodical, dealing with the full range of topics of gravitational physics and relativistic cosmology and published under the auspices of the Russian Gravitation Society and Peoplesâ€™ Friendship University of Russia. The journal publishes research papers, review articles and brief communications on the following fields: theoretical (classical and quantum) gravitation; relativistic astrophysics and cosmology, exact solutions and modern mathematical methods in gravitation and cosmology, including Lie groups, geometry and topology; unification theories including gravitation; fundamental physical constants and their possible variations; fundamental gravity experiments on Earth and in space; related topics. It also publishes selected old papers which have not lost their topicality but were previously published only in Russian and were not available to the worldwide research community

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Scalar Fields for Bianchi-I Model in \(\boldsymbol{f(R,T)}\) Theory of Gravity

Abstract