分形宇宙中Kaniadakis和广义Tsallis全息暗能量模型的宇宙后果

IF 1.5 4区 物理与天体物理 Q3 PHYSICS, PARTICLES & FIELDS
A. Jawad, A. M. Sultan
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引用次数: 19

摘要

我们通过假设分形宇宙中的Kaniadakis和广义Tsallis熵,研究了最近提出的以视视界为红外截止点的全息暗能量模型。通过不同的宇宙学参数,讨论了这些模型对相互作用(Γ=3Hbρm)和非相互作用(b2=0)情况的影响。通过减速参数q,两个模型都证明了宇宙的加速膨胀是合理的。这样,状态方程参数ωd描述了宇宙的幻影和精髓阶段。然而,重合参数~r=Ωm/Ωd显示了不同参数值下暗能量和暗物质主导的时代。这里还提到,除了广义Tsallis全息暗能量模型的相互作用情况外,声速的平方给出了模型的稳定性。这里提到,目前在视视界的暗能量模型给出了与最近观测结果一致的结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Cosmic Consequences of Kaniadakis and Generalized Tsallis Holographic Dark Energy Models in the Fractal Universe
We investigate the recently proposed holographic dark energy models with the apparent horizon as the IR cutoff by assuming Kaniadakis and generalized Tsallis entropies in the fractal universe. The implications of these models are discussed for both the interacting (Γ = 3Hbρm) and noninteracting (b2 = 0) cases through different cosmological parameters. Accelerated expansion of the universe is justified for both models through deceleration parameter q. In this way, the equation of state parameter ωd describes the phantom and quintessence phases of the universe. However, the coincidence parameter ~r =Ωm/Ωd shows the dark energyand dark matter-dominated eras for different values of parameters. It is also mentioned here that the squared speed of sound gives the stability of the model except for the interacting case of the generalized Tsallis holographic dark energy model. It is mentioned here that the current dark energy models at the apparent horizon give consistent results with recent observations.
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来源期刊
Advances in High Energy Physics
Advances in High Energy Physics PHYSICS, PARTICLES & FIELDS-
CiteScore
3.40
自引率
5.90%
发文量
55
审稿时长
6-12 weeks
期刊介绍: Advances in High Energy Physics publishes the results of theoretical and experimental research on the nature of, and interaction between, energy and matter. Considering both original research and focussed review articles, the journal welcomes submissions from small research groups and large consortia alike.
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