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Exploring the new Tsallis agegraphic dark energy with interaction through statefinder
General Relativity and Gravitation ( IF 2.1 ) Pub Date : 2021-04-26 , DOI: 10.1007/s10714-021-02818-y
Shikha Srivastava , Umesh Sharma , Vipin Dubey

In this work, we explore the recently proposed new Tsallis agegraphic dark energy model in a flat FLRW Universe by taking the conformal time as IR cutoff with interaction. The deceleration parameter of the interacting new Tsallis agegraphic dark energy model provides the phase transition of the Universe from decelerated to accelerated phase. The EoS parameter of the model shows a rich behaviour as it can be quintessence-like or phantom-like depending on the interaction (\(b^2\)) and parameter B. The evolutionary trajectories of the statefinder parameters and \((\omega _D, \omega _D^{'})\) planes are plotted by considering the initial condition \(\Omega _{D}^{0} =0.73\), \(H_{0}= 67\) according to \(\Lambda \)CDM observational Planck 2018 data for different \(b^2\) and B. The model shows both quintessence and Chaplygin gas behaviour in the statefinder (rs) and (rq) pair planes for different \(b^2\) and B.



中文翻译:

通过Statefinder来探索新的Tsallis年龄分布暗能量

在这项工作中,我们通过将保形时间作为具有交互作用的IR截止,在平坦的FLRW Universe中探索了最近提出的新的Tsallis年龄分布暗能量模型。相互作用的新Tsallis年龄分布暗能量模型的减速参数提供了宇宙从减速状态到加速状态的相变。该模型的EoS参数显示出丰富的行为,因为它可以根据交互作用(\(b ^ 2 \))和参数B表现出典型的或幻像的。考虑到初始条件\(\ Omega _ {D} ^ {0} = 0.73 \)来绘制statefinder参数和\((\ omega _D,\ omega _D ^ {'})\)平面的演化轨迹,\(H_ {0} = 67 \)根据\(\ Lambda \)不同\\(b ^ 2 \)B的CDM观测Planck 2018数据。该模型显示了在状态查找器(r,  s)和(r,  q)对平面中对于不同的\(b ^ 2 \)B的典型和Chaplygin气体行为。

更新日期:2021-04-26
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