Black hole non-formation in the matrix model
Black hole non-formation in the matrix model
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DOI：
10.1088/1126-6708/2006/01/039
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发表时间：
2004-11
影响因子：
5.4
通讯作者：
Joanna L. Karczmarek;J. Maldacena;A. Strominger
中科院分区：
文献类型：
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作者：
Joanna L. Karczmarek;J. Maldacena;A. Strominger
二维弦理论的经典低能有效作用有描述物质壳层向黑洞的引力崩塌的解。结果表明，弦环修正可以在视界范围内作任意小的修正，但α的修正不能。在全弦理论中，矩阵模型被用来说明典型的坍塌壳层不会形成黑洞。相反，就在地平线形成之前，它们向后散射到无穷远。矩阵模型也被用来表明，由坍塌的壳层引起的幼稚预期的粒子产生消失到领先的有序。这与弦理论的计算是一致的。从有效低能场理论的观点来看，这一结果令人惊讶，并涉及到各种项之间的微妙抵消。
The leading classical low-energy effective actions for two-dimensional string theories have solutions describing the gravitational collapse of shells of matter into a black hole. It is shown that string loop corrections can be made arbitrarily small up to the horizon, but α' corrections cannot. The matrix model is used to show that typical collapsing shells do not form black holes in the full string theory. Rather, they backscatter out to infinity just before the horizon forms. The matrix model is also used to show that the naively expected particle production induced by the collapsing shell vanishes to leading order. This agrees with the string theory computation. From the point of view of the effective low energy field theory this result is surprising and involves a delicate cancellation between various terms.