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Cryptographic Censorship
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DOI：10.1007/JHEP01(2025)122.png)
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摘要
En 中文
We formulate and take two large strides towards proving a quantum version of the weak cosmic censorship conjecture. We first prove Cryptographic Censorship: a theorem showing that when the time evolution operator of a holographic CFT is approximately pseudorandom (or Haar random) on some code subspace, then there must be an event horizon in the corresponding bulk dual. This result provides a general condition that guarantees (in finite time) event horizon formation, with minimal assumptions about the global spacetime structure. Our theorem relies on an extension of a recent quantum learning no-go theorem and is proved using new techniques of pseudorandom measure concentration. To apply this result to cosmic censorship, we separate singularities into classical, semi-Planckian, and Planckian types. We illustrate that classical and semi-Planckian singularities are compatible with approximately pseudorandom CFT time evolution; thus, if such singularities are indeed approximately pseudorandom, by Cryptographic Censorship, they cannot exist in the absence of event horizons. This result provides a sufficient condition guaranteeing that seminal holographic results on quantum chaos and thermalization, whose general applicability relies on typicality of horizons, will not be invalidated by the formation of naked singularities in AdS/CFT.
Keyword:
AdS-CFT Correspondence
Black Holes
Spacetime Singularities
期刊
IF:
5.5
论文数:
4.0W
被引数:
13.7W
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