论文标题
防火墙黑洞和动作原理的回声
Firewall black holes and echoes from an action principle
论文作者
论文摘要
人们常说，基于当地行动原则，没有重力理论，从而引发了防火墙黑洞解决方案。此外，Guo和Mathur 2022（2205.10921）对防火墙回声的可观察性引起了疑问，这是由于宏观内向室内波动数据包的反应产生的封闭捕获表面而引起的。 In this paper, we bring Einstein-Maxwell-Dilaton action as a toy model that serves as counterexample to these assertions.麦克斯韦（Maxwell）和迪拉顿（Dilaton）领域的作用来自几种基本理论，例如（超级）弦理论的低能量极限或kaluza-klein压缩。在这些系统中，黑洞溶液具有两个曲率奇点。我们将表明，事件范围内的外奇异性可能会导致外部发生重大变化，接近极端极限，从而使事件范围附近的宏观反射屏障在此玩具模型中导致“可观察到的”重力波回声。此外，我们还质疑Guo等人的论点。 2017年（1711.01617）声称，使用这些黑洞作为反例子，反向散射光子的一小部分将能够从防火墙中逃回无穷大。
It is often said that there is no gravity theory based on local action principles giving rise to firewall black hole solutions. Additionally, Guo and Mathur 2022 (2205.10921) have cast doubt on the observability of firewall echoes due to closed trapped surface produced by backreaction of macroscopic in-falling wave packets. In this paper, we bring Einstein-Maxwell-Dilaton action as a toy model that serves as counterexample to these assertions. Actions with Maxwell and dilaton fields emerge from several fundamental theories, such as the low energy limit of (super) string theory or Kaluza-Klein compactifications. In these systems, the black hole solution has two curvature singularities. We will show that the outer singularity inside the event horizon can cause significant change to the outside, close to the extremal limit, making a macroscopic reflective barrier near the event horizon that would lead to "observable" gravitational wave echoes in this toy model. Additionally, we also call into question the argument by Guo et al. 2017 (1711.01617) claiming that a very small fraction of the backscattered photons will be able to escape back to infinity from the firewall using these black holes as counterexample.
