The Covariant entropy bound in gravitational collapse
The Covariant entropy bound in gravitational collapse
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DOI：
10.1088/1126-6708/2004/04/017
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发表时间：
2004-03
影响因子：
5.4
通讯作者：
Sijie Gao;J. Lemos
中科院分区：
文献类型：
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作者：
Sijie Gao;J. Lemos
我们研究了引力坍缩背景下的协变熵界。首先，我们批判性地讨论了布索提出的启发式论点。然后我们通过一个精确的模型来解决这个问题：一个托尔曼-邦迪尘埃壳坍缩成一个史瓦西黑洞。坍缩后，一个质量更大的新黑洞形成。旧黑洞的视界L终止于奇点。我们表明，熵穿越L不超过四分之一的旧视界的面积。因此，该过程满足协变熵界。
We study the covariant entropy bound in the context of gravitational collapse. First, we discuss critically the heuristic arguments advanced by Bousso. Then we solve the problem through an exact model: a Tolman-Bondi dust shell collapsing into a Schwarzschild black hole. After the collapse, a new black hole with a larger mass is formed. The horizon, L, of the old black hole then terminates at the singularity. We show that the entropy crossing L does not exceed a quarter of the area of the old horizon. Therefore, the covariant entropy bound is satisfied in this process.