arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0809.1554hep-thgr-qc
收藏

FRW宇宙中的Hawking视视界辐射

Hawking Radiation of Apparent Horizon in a FRW Universe

Rong-Gen Cai, Li-Ming Cao, Ya-Peng Hu

摘要:

霍金辐射是黑洞的一种重要量子现象,它与黑洞的事件视界的存在密切相关。德西特空间的宇宙学事件视界也是具有热谱的霍金辐射。利用隧穿方法,证明了对于任意曲率的Friedmann-Robertson-Walker宇宙,局部定义的视视界确实存在一个具有温度的霍金辐射$T=1/2π\tilde r_A$,其中$\tilde r_A$是视视界半径.这样我们就填补了文献中关于热力学热力学第一定律与Friedmann方程之间关系的空白,在那里,表观视界被假定有这样一个温度而没有任何证明。此外,我们强调了与视视界相关的霍金温度的含义。

英文摘要:

Hawking radiation is an important quantum phenomenon of black hole, which is closely related to the existence of event horizon of black hole. The cosmological event horizon of de Sitter space is also of the Hawking radiation with thermal spectrum. By use of the tunneling approach, we show that there is indeed a Hawking radiation with temperature, $T=1/2π\tilde r_A$, for locally defined apparent horizon of a Friedmann-Robertson-Walker universe with any spatial curvature, where $\tilde r_A$ is the apparent horizon radius. Thus we fill in the gap existing in the literature investigating the relation between the first law of thermodynamics and Friedmann equations, there the apparent horizon is assumed to have such a temperature without any proof. In addition, we stress the implication of the Hawking temperature associated with the apparent horizon.

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。

↑