论文标题
岛屿和乌尔曼阶段：从蒸发黑洞中明确恢复经典信息
Islands and Uhlmann phase: Explicit recovery of classical information from evaporating black holes
论文作者
论文摘要
最近的工作已经建立了通往页面曲线半经典有效性的途径，因此提供了证据表明信息逃脱了蒸发的黑洞。但是，尚未给出一种在经典限制中明确恢复和实际使用该信息的协议。在本文中，我们描述了这样的协议，表明观察者可以通过测量鹰辐射的Uhlmann相，重建黑洞内部的相空间。黑洞形成和蒸发的过程在此相空间与初始物质配置的空间之间提供了可逆地图。因此，所有经典信息均已明确恢复。我们在本文中假设复制虫洞有助于重力路径积分。
Recent work has established a route towards the semiclassical validity of the Page curve, and so provided evidence that information escapes an evaporating black hole. However, a protocol to explicitly recover and make practical use of that information in the classical limit has not yet been given. In this paper, we describe such a protocol, showing that an observer may reconstruct the phase space of the black hole interior by measuring the Uhlmann phase of the Hawking radiation. The process of black hole formation and evaporation provides an invertible map between this phase space and the space of initial matter configurations. Thus, all classical information is explicitly recovered. We assume in this paper that replica wormholes contribute to the gravitational path integral.
