平坦时空中的 Rényi 熵与全息暗能量
Renyi entropy and the holographic dark energy in flat space time
AI总结：
本文基于 Rényi 熵修正平坦 FLRW 宇宙中的 HDE 模型，引入几何暗能量项，并通过物态方程与减速参数说明特定 ζ 可符合加速膨胀观测。
摘要：
基于 Rényi 熵，我们研究了空间平坦 FLRW 宇宙表观视界中全息暗能量（HDE）模型的熵修正版本。应用广义熵会得到 Friedmann 演化方程的修正形式；除无压物质和 HDE 之外，这些方程中还存在一个纯几何的额外项。该额外项被假定为暗能量的另一组成部分。我们假设宇宙由暗物质和全息暗能量等理想流体的非相互作用组分填充。总暗能量由广义 HDE 与几何部分组合而成，其密度参数随红移减小而趋近于一。对宇宙总物态方程参数和减速参数的考察表明，只有在常数 ζ 取特定数值时，宇宙才能保持正加速膨胀阶段，并表现出与观测数据的一致性。
英文摘要：
Based on Renyi entropy, we study the entropy corrected version of the holographic dark energy (HDE) model in apparent horizon of spatially flat FLRW universe. Applying the generalized entropy leads to the modified version of the Friedmann evolution equations which besides pressure-less matter and HDE, there is an extra term that is purely geometric. This extra term are assumed as another part of dark energy. We assume the universe is filled by non-interacting components of ideal fluids such as dark matter and holographic dark energy. The total dark energy, which is a combination of generalized HDE and geometric part, has a density parameter that approaches one by decreasing the redshift. Considering the total equation of state parameter and deceleration parameter of the universe indicates that the universe could stays in positive accelerated expansion phase that shows an agreement with observational data, only for the specific values of the constant $ζ$.
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。
