论文标题
形防火墙的准模式和稳定性
Quasinormal Modes and Stability of Firewalls
论文作者
论文摘要
解决黑洞信息问题的解决方案需要从黑洞内部传播到外部的信息。这种传播违反了一般相对论，可以想象可以通过“防火墙”模型来实现。基于在带电和旋转黑洞的内部地平线上存在类似的防火墙，最近构建了一个防火墙模型，外部时空还原为Schwarzschild指标的模型，但内部却大不相同。我们研究了这些物体的径向和非自由极性稳定性。我们首先在球形对称的扰动下研究壳的动力学，并通过需要在防火墙上的高音速度来对防火墙模型参数施加限制。我们表明，对防火墙的内部参数构成了稳定性和司云的需求，从而缩小了可用于创建这种结构的对象范围。
A solution to the black hole information problem requires propagation of information from the interior of the black hole to the exterior. Such propagation violates general relativity and could conceivably be accomplished through "firewall" models. Based on the existence of similar firewalls at the inner horizons of charged and rotating black holes, a model of a firewall was recently constructed where the exterior spacetime reduces to that of the Schwarzschild metric but with a dramatically different interior. We investigate the radial and nonradial polar stability of these objects. We first study the dynamics of the shell under spherically symmetric perturbations, and impose constraints on the firewall model parameters by requiring a subluminal speed of sound on the firewall. We show that the demands of stability and subluminality impose significant constraints on the internal parameters of the firewall, narrowing down the range of objects that could be used to create such a structure.
