标题： 无黑洞的黑洞临界现象 显示英文标题

标题： Black Hole Critical Phenomena Without Black Holes

摘要： 通过数值演化研究黑洞形成的阈值，已经发现了引人入胜的非线性现象。 幂律质量缩放、普遍性的方面以及自相似性现在已经发现适用于各种模型。 然而，仍存在一些问题。 在这里，我简要回顾临界现象，讨论一些最近的结果，并描述一个不涉及引力的模型，该模型展示了类似的现象。 显示英文摘要

摘要： Studying the threshold of black hole formation via numerical evolution has led to the discovery of fascinating nonlinear phenomena. Power-law mass scaling, aspects of universality, and self-similarity have now been found for a large variety of models. However, questions remain. Here I briefly review critical phenomena, discuss some recent results, and describe a model which demonstrates similar phenomena without gravity.