标题： 卡斯纳纪元、世和宙 显示英文标题

标题： Kasner Epochs, Eras and Eons

摘要： 正如Belinski、Khalatnikov和Lifshitz的经典工作所展示的，在广义相对论中，通向一般类空奇点的过程由一系列以局部Kasner度规为主的时段和时期组成，并通过短暂的过渡相连。 当引入量子引力效应时，我们认为会出现一种新的过渡类型，从而产生Kasner纪元：这些纪元在每个能量尺度上都由新兴物理主导。 我们讨论了爱因斯坦纪元可能结束的不同方式，并明确展示了由于高阶导数修正，在黑洞解内部如何额外产生Kasner纪元。 显示英文摘要

摘要： As shown in the classic work of Belinski, Khalatnikov and Lifshitz, the approach to a generic space-like singularity in general relativity consists of a sequence of eras and epochs in which the metric is locally Kasner, connected by brief transitions. When quantum gravity effects are included, we argue that a new type of transition arises, giving rise to Kasner eons: periods which are dominated by emergent physics at each energy scale. We comment on the different ways in which the Einsteinian eon may come to an end and show explicitly how additional Kasner eons arise in the interior of a black hole solution due to higher-derivative corrections.