Physical Procession in the system with cosmological constant and dynamics of in homogeneous space-times

我们研究了具有宇宙学常数的非均匀时空的动力学，发现了一个普遍的图景：存在一个阿伯特-德塞尔质量的临界值，超过这个临界值，局域的非均匀不会坍塌成黑洞。因此，除非形成裸奇性，否则大质量黑洞不可能在渐近的德西特时空中形成。这一结果暗示了一种不均匀宇宙可能出现的通胀情景。

We investigate dynamics of inhomogeneous spacetime with a cosmological constant and find a universal picture : There is a critical value of the Abbott-Deser mass, beyond which localized inhomogeneities do not collapse into black holes. Consequently, black holes with large mass cannot be formed in the asymptotically de Sitter space-time, unless a naked singularity is formed. This result suggests a possible inflationary scenario for inhomogeneous universes.