天琴座几何中的暗能量宇宙学模型

IF 0.8 4区综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES

Proceedings of the National Academy of Sciences, India Section A: Physical Sciences Pub Date : 2023-07-26 DOI:10.1007/s40010-023-00838-8

Binaya Kumar Bishi, Pratik Vijay Lepse, Aroonkumar Beesham

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引用次数: 0

摘要

我们根据天琴座的比安奇时空几何构造暗能量的宇宙学模型，以了解宇宙的演化。减速参数\(q=-\frac{\alpha _1}{t^2}+\alpha _2-1\)的具体选择用于确定Lyra几何中场方程的精确解。参数\(\alpha _1\)的维度等于时间的平方。此外，我们还讨论了依赖于参数\(\alpha _2\)的两种宇宙学模型。得到了几个物理参数，并对两种模型的结果进行了分析，并以图形形式给出了分析结果。

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Dark Energy Cosmological Models in Lyra Geometry for Bianchi-I Space Time

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Dark Energy Cosmological Models in Lyra Geometry for Bianchi-I Space Time

We construct cosmological models for dark energy based on Lyra’s geometry for the Bianchi-I space-time to understand the evolution of the universe. The specific choice of the deceleration parameter \(q=-\frac{\alpha _1}{t^2}+\alpha _2-1\) is used to determine the exact solutions of the field equations in Lyra geometry. The parameter \(\alpha _1\) has a dimension equal to the square of time. Further, we have discussed two cosmological models depending on the parameter \(\alpha _2\). Several physical parameters are obtained and the results in both the models are analyzed and presented graphically for the analysis of the results.

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来源期刊

Proceedings of the National Academy of Sciences, India Section A: Physical Sciences 综合性期刊-综合性期刊

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： To promote research in all the branches of Science & Technology; and disseminate the knowledge and advancements in Science & Technology