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arXiv 0707.3000gr-qc
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黑洞临界行为的解析解

Analytical solutions for black-hole critical behaviour

Tomohiro Harada, Ashutosh Mahajan

摘要:

动态爱因斯坦集团是一个由反向旋转粒子组成的球形自引力系统,它可以膨胀、振荡和坍缩。这个系统在黑洞形成的临界点上表现出临界的坍缩行为。当粒子的特定角动量被微调到临界值时,它就出现了。在阈值处找到了唯一的精确自相似解。这个解决方案开始于一个规则的表面,涉及类时裸奇点的形成和渐近接近一个静态的自相似集群。

英文摘要:

Dynamical Einstein cluster is a spherical self-gravitating system of counterrotating particles, which may expand, oscillate and collapse. This system exhibits critical behaviour in its collapse at the threshold of black hole formation. It appears when the specific angular momentum of particles is tuned finely to the critical value. We find the unique exact self-similar solution at the threshold. This solution begins with a regular surface, involves timelike naked singularity formation and asymptotically approaches a static self-similar cluster.

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