HPS meets AMPS: how soft hair dissolves the firewall
HPS meets AMPS: how soft hair dissolves the firewall
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DOI：
10.1007/jhep09(2021)099
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发表时间：
2020-12
影响因子：
5.4
通讯作者：
S. Pasterski;H. Verlinde
中科院分区：
文献类型：
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作者：
S. Pasterski;H. Verlinde
我们以霍金、佩里和斯特罗明格的观察为基础，即一个全球黑洞时空支持大量的软毛自由度，从而为阿尔姆赫里、马罗夫、波尔钦斯基和萨利的防火墙论点提供了新的线索。我们提出用连接渐近视界区域和近视界区域的经典过渡函数对软毛Goldstone模式进行编码。软毛携带的熵是黑洞熵的一部分，并编码在外部几何结构中。我们认为，落入观测器在到达视界之前自动测量软模式的经典值，并且这种测量实现了一个代码子空间投影，从而能够重建内部算子。我们使用软毛动力学引入了一个观察者依赖于防火墙的概念，并表明对于一个下落的观察者来说，它向黑洞内部后退：观察者在到达奇点之前从未遇到过防火墙。我们的研究结果表明，HPS黑洞软毛在溶解AMPS防火墙中起着至关重要的作用。
We build on the observation by Hawking, Perry and Strominger that a global black hole space-time supports a large number of soft hair degrees of freedom to shed new light on the firewall argument by Almheiri, Marolf, Polchinski, and Sully. We propose that the soft hair Goldstone mode is encoded in a classical transition function that connects the asymptotic and near horizon region. The entropy carried by the soft hair is part of the black hole entropy and encoded in the outside geometry. We argue that the infalling observer automatically measures the classical value of the soft mode before reaching the horizon and that this measurement implements a code subspace projection that enables the reconstruction of interior operators. We use the soft hair dynamics to introduce an observer dependent notion of the firewall and show that for an infalling observer it recedes inwards into the black hole interior: the observer never encounters a firewall before reaching the singularity. Our results indicate that the HPS black hole soft hair plays an essential role in dissolving the AMPS firewall.