arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1906.08051physics.gen-ph
收藏

相互作用的Tsallis全息暗能量:非平坦宇宙中的宇宙行为、状态发现者分析和$ω_D-ω'_D$对

Interacting Tsallis holographic dark energy: Cosmic behaviour, statefinder analysis and $ω_D-ω'_D$ pair in the non-flat universe

Umesh Kumar Sharma, Vipin Chandra Dubey, A. Pradhan

摘要:

研究了以红外截止为视视界的非平坦宇宙中相互作用Tsallis全息暗能量(THDE)模型。为了理解非平坦宇宙中相互作用THDE模型的宇宙学演化,确定了THDE模型的物态方程和减速参数。通过对导出的THDE模型应用状态探测器$(r, s)$参数对诊断和$ω_D-ω'_D$对动力学分析,我们在普朗克2018年基础宇宙学结果VI-LCDM观测数据的框架下,绘制了Tsallis参数$δ$和相互作用项$b^{2}$以及空间曲率$Ω_{k0}= 0, -0.0012$和$0.0026$分别对应于平坦、开放和封闭宇宙的演化轨迹。

英文摘要:

The paper explores the interacting Tsallis holographic dark energy (THDE) model in a non-flat universe following an infrared cutoff as the apparent horizon. The equation of state (EoS) and the deceleration parameter of THDE model are determined to understand the cosmological evolution for interacting THDE model in the nonflat universe. By applying the statefinder $(r, s)$ parameter-pairs diagnostic and $ω_D-ω'_D$ pair dynamical analysis for the derived THDE model, we plot the evolutionary trajectories for different cases of Tsallis parameter $δ$ and interaction term $b^{2}$ and also, for spatial curvature $Ω_{k0}= 0, -0.0012$ and $0.0026$ corresponding to flat, open and closed universes, respectively, in the framework of Planck 2018 base cosmology results VI-LCDM observational data.

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。

↑