论文标题
带有rényi熵的热力学定律的全息暗能
Holographic dark energy from the laws of thermodynamics with Rényi entropy
论文作者
论文摘要
本文调查了全息原理与热力学定律之间的关系,以解释宇宙的晚期加速。首先,我们探讨了从Horizon热力学定律中产生标准全息暗能量(SHDE)的可能性。除了遵循指数伸展区域定律的熵外,除非我们重新定义地平线温度,否则我们发现,在全息原理定义的黑暗能量与热力学定律之间构建一对一的对应关系。其次,在SHDE模型中,除非我们引用一些现象学相互作用,否则不可能解释与哈勃式地平线为IR截止的后期宇宙加速度。另一方面,可以使用哈勃地平线上的热力学定律诱导黑暗能量作为整合常数。这些促使我们探索了一种可行的方式来从Horizon热力学定律中援引全息原则。我们表明,在热力学第一定律中,在修改后的弗里德曼方程中出现的其他术语可能会像动态全息暗能(HDE)一样行事。我们研究了与Rényi熵的此类HDE的特征,作为选择,而无需考虑任何非标准的相互作用。有趣的是,当Rényi熵减少到Bekenstein-Hawking熵时,所产生的暗能量将减少为标准宇宙常数。通过检查不同的参数,我们肯定了我们对暗能量的方法的有效性,该方法既尊重全息原理和热力学。
This article investigates the relationship between the holographic principle and the laws of thermodynamics in explaining the late-time acceleration of the universe. First, we explore the possibilities of generating the standard holographic dark energy (SHDE) from the laws of horizon thermodynamics. Except for entropies that follow an exponent stretched area law, unless we redefine the horizon temperature, we found it challenging to construct a one-to-one correspondence between the dark energies defined by the holographic principle and the laws of thermodynamics. Secondly, in SHDE models, unless we invoke some phenomenological interactions, it is impossible to explain the late-time cosmic acceleration with the Hubble horizon as the IR cutoff. On the other hand, it is possible to induce dark energy as an integration constant using the laws of thermodynamics on the Hubble horizon. These motivated us to explore a feasible way to invoke the holographic principle from the laws of horizon thermodynamics. We show that the additional terms that appear in the modified Friedmann equations on using entropies other than the Bekenstein-Hawking entropy in the first law of thermodynamics can behave like a dynamic holographic dark energy (HDE). We study the features of such an HDE with Rényi entropy as the choice without considering any non-standard interactions. Interestingly, the resulting form of dark energy reduces to the standard cosmological constant when Rényi entropy reduces to the Bekenstein-Hawking entropy. By examining different parameters, we affirm the validity of our approach to dark energy, which respects both holographic principle and thermodynamics.