论文标题
黑洞的变形和记忆负担稳定
Black Hole Metamorphosis and Stabilization by Memory Burden
论文作者
论文摘要
增强记忆能力的系统受到记忆负担的普遍影响，这会抑制其衰减。在本文中，我们研究了一个原型模型，以表明可以通过从一组自由度到另一个自由度的量子信息来克服内存负担。但是，由于抑制的重写速率，与初始阶段相比，进化变得非常慢。应用于黑洞，这预测了变态，包括造成一半质量后的最新变态，包括远离霍金蒸发的剧烈偏差。这提出了一个关于黑洞命运的诱人问题。作为两个可能的选择，它可能会变得非常长，也可以通过新的经典不稳定性进入引力团块。第一个选择将为小型原始黑洞作为可行的暗物质候选者打开一个新窗口。
Systems of enhanced memory capacity are subjected to a universal effect of memory burden, which suppresses their decay. In this paper, we study a prototype model to show that memory burden can be overcome by rewriting stored quantum information from one set of degrees of freedom to another one. However, due to a suppressed rate of rewriting, the evolution becomes extremely slow compared to the initial stage. Applied to black holes, this predicts a metamorphosis, including a drastic deviation from Hawking evaporation, at the latest after losing half of the mass. This raises a tantalizing question about the fate of a black hole. As two likely options, it can either become extremely long lived or decay via a new classical instability into gravitational lumps. The first option would open up a new window for small primordial black holes as viable dark matter candidates.
