迟做总比不做好：从黑洞中获取信息
Better Late than Never: Information Retrieval from Black Holes
摘要：
我们表明，为了保持等效原理，直到后来的时候，在酉蒸发黑洞，黑洞的热力学熵必须主要是熵的纠缠横跨事件视界。对于这样的黑洞，我们表明，进入黑洞的信息成为编码在一个三重量子态，一个一次性垫的量子模拟的相关性，只有在蒸发很晚才解码成向外辐射。这种行为一般地描述了高度纠缠的黑洞的幺正蒸发，并且不需要特别设计的演化。我们的工作表明，任何基本理论都存在一个物质场求和规则。
英文摘要：
We show that, in order to preserve the equivalence principle until late times in unitarily evaporating black holes, the thermodynamic entropy of a black hole must be primarily entropy of entanglement across the event horizon. For such black holes, we show that the information entering a black hole becomes encoded in correlations within a tripartite quantum state, the quantum analogue of a one-time pad, and is only decoded into the outgoing radiation very late in the evaporation. This behavior generically describes the unitary evaporation of highly entangled black holes and requires no specially designed evolution. Our work suggests the existence of a matter-field sum rule for any fundamental theory.
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