通过对EoS参数的严格分析,深入了解不同宇宙学背景下的全息暴胀

IF 3 3区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
Moli Ghosh , Surajit Chattopadhyay , Ertan Güdekli
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引用次数: 0

摘要

提出了全息流体背景下的早、晚时间宇宙统一论。该研究的第一阶段检验了基于比例因子幂律的四个模型,中间模型,对数直接模型和紧急模型是否可以推导出通货膨胀条件。在研究的第二阶段,重构了状态方程参数,并分析了状态方程参数的行为。最后,我们得出结论,所考虑的四个模型与暴胀条件是一致的,因为它们可以在全息流体存在的情况下推导暴胀。研究进一步表明,在幂律、中间和紧急情况的后期情景下,状态方程参数目前仍处于幻影时代,这与观测数据一致。此外,还讨论了ΛCDM不动点可达性的状态检测器诊断。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An insight into holographic inflation under different cosmological settings through rigorous analysis of EoS parameter
The unification of early and late-time universe in the background of holographic fluid is proposed. The study’s first phase examines whether or not the four models based on the scale factor power law, intermediate, logamediate, and emergent, can derive inflationary conditions. In the study’s second phase, the Equation of State parameter is reconstructed, and the behavior of the Equation of State parameter is analyzed. Finally, we have concluded that the four models under consideration are consistent with the inflationary conditions, as they can derive inflation in the presence of a holographic fluid. The study further reveals that in the late-time scenario for power law, intermediate, and emergent cases, the equation of state parameter remains in the phantom era at present, which aligns with observational data. Also, statefinder diagnostics have been discussed for the attainability of ΛCDM fixed point.
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来源期刊
Annals of Physics
Annals of Physics 物理-物理:综合
CiteScore
5.30
自引率
3.30%
发文量
211
审稿时长
47 days
期刊介绍: Annals of Physics presents original work in all areas of basic theoretic physics research. Ideas are developed and fully explored, and thorough treatment is given to first principles and ultimate applications. Annals of Physics emphasizes clarity and intelligibility in the articles it publishes, thus making them as accessible as possible. Readers familiar with recent developments in the field are provided with sufficient detail and background to follow the arguments and understand their significance. The Editors of the journal cover all fields of theoretical physics. Articles published in the journal are typically longer than 20 pages.
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