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arXiv 2005.06730gr-qchep-thquant-ph
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再谈信息丢失悖论:告别防火墙?

Information loss paradox revisited: farewell firewall?

Wen-Cong Gan, Fu-Wen Shu

摘要:

幺正演化使一个柯西曲面上的纯态演化到另一个柯西曲面上的纯态。出射的霍金辐射只是后期柯西曲面上的一个子系统。要求霍金辐射是纯的,等于要求整个系统是纯的,而子系统是纯的。我们将看到这个要求将导致防火墙甚至在\textit{flat}时空,因此是无效的。当利用量子引力效应解决奇点时,信息要么存储在黑洞内部场模与出射模的纠缠中,要么存储在几何与霍金辐射的关联中。我们将给出一个简单的论证,即使在半经典状态下,信息(至少部分)也存储在几何和霍金辐射之间的相关性中。

英文摘要:

Unitary evolution makes pure state on one Cauchy surface evolve to pure state on another Cauchy surface. Outgoing Hawking radiation is only subsystem on the late Cauchy surface. The requirement that Hawking radiation to be pure amounts to require purity of subsystem when total system is pure. We will see this requirement will lead to firewall even in \textit{flat} spacetime, and thus is invalid. Information is either stored in the entanglement between field modes inside black hole and the outgoing modes or stored in correlation between geometry and Hawking radiation when singularity is resolved by quantum gravity effects. We will give a simple argument that even in semi-classical regime, information is (at least partly) stored in correlation between geometry and Hawking radiation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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