在Hořava-Lifshitz重力中,Tsallis, rsamnyi和Sharma-Mittal全息暗能量的不同视界截断

IF 3 3区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
Alok Sardar , Sayani Maity , Ujjal Debnath , Anirudh Pradhan
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引用次数: 0

摘要

本研究在非平坦宇宙中使用Tsallis、r尼和Sharma-Mittal全息暗能量模型评估宇宙的宇宙膨胀历史。研究了Hořava-Lifshitz重力中对数和幂律熵修正模型的修正场方程。我们假设宇宙充满了暗能量和相互作用的冷暗物质。以哈勃视界和Granda-Oliveros (GO)视界作为红外截止点,用图形分析了宇宙演化过程中状态参数方程、声速平方方程和ωd -ωd’相平面的宇宙学意义。通过状态参数方程,我们看到宇宙在我们所考虑的模型的不同阶段是如何演化的。我们通过分析相平面ωd -ωd '得到了解冻或冻结区域。我们还通过研究声速参数的平方来证明所考虑的模型的经典稳定或不稳定行为。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Different horizon cut-offs for Tsallis, Rényi and Sharma-Mittal holographic dark energies in Hořava-Lifshitz gravity
This study evaluates the cosmic expansion history of the universe using Tsallis, Rényi and Sharma-Mittal holographic dark energy models in a non-flat universe. The modified field equations for logarithmic and power law entropy corrected models have been investigated in Hořava-Lifshitz gravity. We suppose the universe is filled with dark energy and interacting cold dark matter. Considering the Hubble horizon and Granda-Oliveros (GO) as infrared cut-offs, we analyze the cosmological implication of the equation of state parameter, squared sound speed, and ωdωd phase plane graphically during the cosmic evolution. By the equation of state parameters, we see how the universe evolved at different stages in the models we consider. We obtain the thawing or freezing regions by analyzing the phase plane ωdωd. We also demonstrate the classically stable or unstable behavior of the considered models by studying the squared sound speed parameter.
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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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