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Symmetric teleparallel gravity with holographic Ricci dark energy
Indian Journal of Physics ( IF 2 ) Pub Date : 2023-12-23 , DOI: 10.1007/s12648-023-03014-1
H. S. Shekh , Anirudh Pradhan , Archana Dixit

We examine the isotropic and spatially homogeneous FLRW cosmological-like model in the background of f(Q) gravity, say symmetric teleparallel gravity. By considering an interacting modified holographic Ricci dark energy and pressureless ordinary matter, for this purpose, we define a scale factor of the Universe (Akarsu et al. in JCAP 1:22, 2014) as \(a\left( t\right) =a_{0}\left( \frac{t}{t_{0}}\right) ^{k}e^{b\left( \frac{t}{t_{0}}-1\right) }\), where \(a_{0}\) and \(t_{0}\) be the present value of the scale factor and cosmic time. Further, we discuss the evolutionary trajectories of the deceleration parameter, equation of state parameter, and total density parameter in the evolving universe. Interacting fluids such as pressureless ordinary matter and holographic Ricci dark energy have shown their dominance in the present and late times of cosmic evolution. Finally, we have the concluding remarks.



中文翻译:

对称远平行引力与全息里奇暗能量

我们在f ( Q ) 引力(即对称远平行引力)背景下研究各向同性且空间均匀的 FLRW 类宇宙学模型。通过考虑相互作用的修正全息里奇暗能量和无压普通物质,为此目的,我们将宇宙的比例因子定义为(Akarsu et al. in JCAP 1:22, 2014)为\(a\left( t\right) =a_{0}\left( \frac{t}{t_{0}}\right) ^{k}e^{b\left( \frac{t}{t_{0}}-1\right) } \),其中\(a_{0}\)\(t_{0}\)是比例因子和宇宙时间的当前值。进一步,我们讨论了演化宇宙中减速参数、状态方程参数和总密度参数的演化轨迹。无压普通物质和全息里奇暗能量等相互作用的流体已经显示出它们在宇宙演化的当前和晚期的主导地位。最后,我们进行总结发言。

更新日期:2023-12-23
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