f(R,T)引力下比安奇 V 型弦模型宇宙的宇宙学意义

IF 1.6 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY Indian Journal of Physics Pub Date : 2024-05-29 DOI:10.1007/s12648-024-03262-9
Asem Jotin Meitei, Kangujam Priyokumar Singh
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引用次数: 0

摘要

本文试图在f(R, T)引力理论的框架内,在均质但各向异性的比安奇V型时空中研究弦宇宙学模型。我们将宇宙弦视为能量-动量张量的来源。我们通过假设尺度因子的幂律形式推导出了相应场方程的解,还评估和讨论了模型的各种物理和运动特性,包括挺举参数和能量条件。在一些特定的常数值下,宇宙学参数的变化以图表形式呈现。
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Cosmological implications on Bianchi type-V string model universe in f(R,T) gravity

The paper attempts to investigate string cosmological model within the framework of f(RT) theory of gravity in homogeneous but anisotropic Bianchi Type-V space-time. We have considered cosmic string as a source of energy-momentum tensor. We derived the solutions of the corresponding field equations by assuming power-law form of scale factor and also evaluated and discussed the various physical and kinematic properties including the jerk parameter, energy condition of the model. The variation of the cosmological parameters has been graphically presented for some specific values of the constants.

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来源期刊
Indian Journal of Physics
Indian Journal of Physics 物理-物理:综合
CiteScore
3.40
自引率
10.00%
发文量
275
审稿时长
3-8 weeks
期刊介绍: Indian Journal of Physics is a monthly research journal in English published by the Indian Association for the Cultivation of Sciences in collaboration with the Indian Physical Society. The journal publishes refereed papers covering current research in Physics in the following category: Astrophysics, Atmospheric and Space physics; Atomic & Molecular Physics; Biophysics; Condensed Matter & Materials Physics; General & Interdisciplinary Physics; Nonlinear dynamics & Complex Systems; Nuclear Physics; Optics and Spectroscopy; Particle Physics; Plasma Physics; Relativity & Cosmology; Statistical Physics.
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