论文标题
热力学一致的熵宇宙学
Thermodynamically consistent entropic-force cosmology
论文作者
论文摘要
我们分析了熵宇宙学模型的热力学一致性。我们的分析基于具有哈勃半径的任意力的广义熵缩放。与该区域成正比的Bekenstein-Hawking熵，非addive $ s_ {δ= 3/2} $ - 熵与体积成正比。通过将熵宇宙学来解决的要点之一是被视为主流宇宙学的严重替代方案是提供一个物理原理，指出必须使用哪种熵和温度。我们通过要求保留热力学的传统结构来确定宇宙视野的温度。我们通过提供适当的约束来优化哈勃屏幕的替代熵和温度，比较热力学一致的熵模型的性能与可用的超新星数据。我们的结果指出，温度与霍克的温度不同。
We analyze the thermodynamical consistency of entropic-force cosmological models. Our analysis is based on a generalized entropy scaling with an arbitrary power of the Hubble radius. The Bekenstein-Hawking entropy, proportional to the area, and the nonadditive $S_{δ=3/2}$-entropy, proportional to the volume, are particular cases. One of the points to be solved by entropic-force cosmology for being taken as a serious alternative to mainstream cosmology is to provide a physical principle that points out what entropy and temperature have to be used. We determine the temperature of the universe horizon by requiring that the Legendre structure of thermodynamics is preserved. We compare the performance of thermodynamically consistent entropic-force models with regard to the available supernovae data by providing appropriate constraints for optimizing alternative entropies and temperatures of the Hubble screen. Our results point out that the temperature differs from the Hawking one.
