Volume of black holes

Volume of black holes
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DOI:
10.1103/physrevd.73.124021
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发表时间:
2005-08
期刊:
影响因子:
5
通讯作者:
M. Parikh
M. Parikh
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
M. Parikh

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我们提出了静止时空体积的一个简单定义。所提出的体积在时间上是恒定的,独立于平稳时间切片的选择,并且即使在没有全局类时间杀伤向量的情况下也适用。然后,我们考虑是否有可能构建具有有限视界面积但具有无限体积的时空,方法是让半径趋于无穷大,同时进行离散识别以保持视界面积。我们证明,在三维或四维中,不存在这样的解在某种程度上是不一致的。这可能会限制贝肯斯坦-霍金熵的统计解释。
We propose a simple definition of volume for stationary spacetimes. The proposed volume is constant in time, independent of the choice of stationary time slicing, and applies even in the absence of a globally timelike Killing vector. We then consider whether it is possible to construct spacetimes that have finite horizon area but infinite volume, by letting the radius go to infinity while making discrete identifications to preserve the horizon area. We show that, in three or four dimensions, no such solutions exist that are not inconsistent in some way. This may constrain the statistical interpretation of the Bekenstein-Hawking entropy.