论文标题

在广告的地平线附近提取鹰辐射

Extracting Hawking Radiation Near the Horizon of AdS Black Holes

论文作者

Saraswat, Krishan, Afshordi, Niayesh

论文摘要

我们研究球体对称黑洞的蒸发率如何通过靠近地平线的辐射的提取影响。我们采用一种提取模型,该模型涉及一个完美的吸收性屏幕靠近地平线,并表明可以根据放置屏幕的地平线靠近地平线来更改蒸发率。我们应用结果表明,Hayden-Preskill解码标准定义的争夺时间是在Pennington的作品(Arxiv:1905.08255)中得出的,它通过纠缠楔重建进行了修改。修改显示为对彭宁顿时间尺度的对数校正,取决于放置吸收屏幕的位置。通过固定地平线和屏幕之间的适当距离,我们表明,对于小广告,黑洞在争夺时间中领先的顺序术语与Pennington的争夺时间一致。但是,对于大广告,黑洞的前序log包含一个特征长度的细胞的Bekenstein-Hawking熵,等于AD半径,而不是全层的熵。此外,使用径向无效的能量条件(NEC)和全息C理论之间的对应关系,我们认为屏幕不能任意接近地平线。这导致了全息论证,即使用屏幕的黑洞挖掘无法显着改变黑洞的寿命。

We study how the evaporation rate of spherically symmetric black holes is affected through the extraction of radiation close to the horizon. We adopt a model of extraction that involves a perfectly absorptive screen placed close to the horizon and show that the evaporation rate can be changed depending on how close to the horizon the screen is placed. We apply our results to show that the scrambling time defined by the Hayden-Preskill decoding criterion, which is derived in Pennington's work (arXiv:1905.08255) through entanglement wedge reconstruction is modified. The modifications appear as logarithmic corrections to Pennington's time scale which depend on where the absorptive screen is placed. By fixing the proper distance between the horizon and screen we show that for small AdS black holes the leading order term in the scrambling time is consistent with Pennington's scrambling time. However, for large AdS black holes the leading order Log contains the Bekenstein-Hawking entropy of a cell of characteristic length equal to the AdS radius rather than the entropy of the full horizon. Furthermore, using the correspondence between the radial null energy condition (NEC) and the holographic c-theorem, we argue that the screen cannot be arbitrarily close to the horizon. This leads to a holographic argument that black hole mining using a screen cannot significantly alter the lifetime of a black hole.

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