arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 0911.3239hep-thgr-qc
收藏

Horava-Lifshitz引力中的霍金辐射和黑洞光谱

Hawking radiation and black hole spectroscopy in Horava-Lifshitz gravity

Bibhas Ranjan Majhi

摘要:

本文用改进的\cite{Banerjee:2008sn}中的隧穿方法讨论了Horava-Lifshitz引力场中黑洞的霍金辐射。利用密度矩阵技术导出了与理想黑体辐射谱相同的辐射谱。这里得到的温度与黑洞的表面引力成正比,就像通常的爱因斯坦引力一样。利用黑洞热力学第一定律导出了熵。最后,得到熵/面积的谱。后一个结果也从准简正模的观点进行了讨论。这两种方法导致一个均匀的熵谱,虽然间距的值是不同的。另一方面,由于熵与黑洞的视界面积不成正比,面积谱也不是等距的,这一发现也适用于爱因斯坦-高斯-邦纳理论。

英文摘要:

Hawking radiation from the black hole in Horava-Lifshitz gravity is discussed by a reformulation of the tunneling method given in \cite{Banerjee:2008sn}. Using a density matrix technique the radiation spectrum is derived which is identical to that of a perfect black body. The temperature obtained here is proportional to the surface gravity of the black hole as occurs in usual Einstein gravity. The entropy is also derived by using the first law of black hole thermodynamics. Finally, the spectrum of entropy/area is obtained. The latter result is also discussed from the viewpoint of quasi-normal modes. Both methods lead to an equispaced entropy spectrum, although the value of the spacing is not the same. On the other hand, since the entropy is not proportional to the horizon area of the black hole, the area spectrum is not equidistant, a finding which also holds for the Einstein-Gauss-Bonnet theory.

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。

↑