论文标题
霍金信息悖论的简短历史
A Brief History of Hawking's Information Paradox
论文作者
论文摘要
在这篇被邀请的评论中，我们描述了Hawking的信息悖论以及最近提出的解决方案。显式计算表明黑洞上存在量子头发，这意味着外部重力场的量子状态取决于黑洞的内部状态。然后，简单的量子力学意味着鹰辐射幅度取决于内部状态，从而产生了纯最终辐射状态，该状态可保留单位性，重要的是违反了对原始悖论至关重要的分解假设。黑洞信息是在辐射的纠缠宏观叠加状态中编码的。
In this invited review, we describe Hawking's information paradox and a recently proposed resolution of it. Explicit calculations demonstrate the existence of quantum hair on black holes, meaning that the quantum state of the external graviton field depends on the internal state of the black hole. Simple quantum mechanics then implies that Hawking radiation amplitudes depend on the internal state, resulting in a pure final radiation state that preserves unitarity and, importantly, violates a factorization assumption which is central to the original paradox. Black hole information is encoded in entangled macroscopic superposition states of the radiation.
