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arXiv 2402.05784gr-qcastro-ph.COhep-th
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Tsallis holographic dark能量 with power law ansatz approach

Tsallis holographic dark energy with power law ansatz approach

International Centre for Space and Cosmology, School of Arts and Sciences, Ahmedabad University(艾哈迈达巴德大学艺术与科学学院太空与宇宙学国际中心);Research Institute of Physics, Southern Federal University(南联邦大学物理研究所);Virtual Institute of Astroparticle Physics(高能粒子物理学虚拟研究所);Center for Cosmoparticle Physics Cosmion, National Research Nuclear University “MEPHI”(国立研究核子大学“MEPHI”宇宙粒子物理中心Cosmion);Lab. for Theor. Cosmology, International Centre of Gravity and Cosmos, Tomsk State University of Control Systems and Radio Electronics (TUSUR)(托木斯克国立控制系统与无线电电子大学国际重力与宇宙中心理论宇宙学实验室)

Oem Trivedi, Maxim Khlopov, Alexander V. Timoshkin

AI总结:

本文研究了Tsallis holographic dark energy模型,通过幂律假设方法探讨了粘性、非粘性及Chaplygin气体三种宇宙学场景,分析了模型的稳定性及 phantom divide 交叉特性。

摘要:

基于全息原理,我们探讨了晚期宇宙加速问题,这促使了大量关于全息暗能量模型的研究。我们考虑了一种非常有趣的全息情景,即Tsallis全息暗能量模型,并采用基于假设的方法来研究此类模型。我们考虑了三种宇宙学情景,即粘性、非粘性和Chaplygin气体情景,讨论了这些模型的各种关键特性。我们讨论了Tsallis模型在这些情景下的各种关键属性,并探讨了每种情况下 phantom divide 的交叉情况,但只有Chaplygin气体模型能提供更清晰的稳定性问题视角。

英文摘要:

Holographic principles have proven to be a very interesting approach towards dealing with the issues of the late-time acceleration of the universe, which has resulted in a great amount of work on holographic dark energy models. We consider one such very interesting holographic scenario, namely the Tsallis Holographic dark energy model and consider an ansatz based approach to such models. We consider three cosmological scenarios in such models, namely those with viscous , non-viscous and Chaplygin gas scenarios, discussing various crucial aspects related to these models. We discuss various crucial properties of the Tsallis model in such scenarios and see how the phantom divide is crossed in each case, but it's only the Chaplygin gas models which give a better view on stability issues.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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