Cited by 1,332Black Holes and Theoretical PhysicsQuantum many-body systemsQuantum Information and Cryptography

Black holes as mirrors: quantum information in random subsystems

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Hayden, Patrick, Preskill, John·2007·Journal of High Energy Physics

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Crossref · 10.1088/1126-6708/2007/09/120

Cites

33 of 33 references verified0 citation errors · 0 not checkable

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  • This explains the state dependence required in the Hayden-Preskill decoding process and gives a direct derivation of the results about state dependence in entanglement wedge reconstruction from [13].

    “This explains the state dependence required in the Hayden-Preskill decoding process [47] and gives a direct derivation of the results about state dependence in entanglement wedge reconstruction from [13].”

    From Replica wormholes and the black hole interior (2022) · cites this paper as [47]

    The decoding discussion (section labeled JHEP09(2007)120; page not specified) says Bob chooses which qubits to recover and describes different decoding maps for different subsystems. This supports a dependence on what is being recovered, but the cited paper does not explicitly establish the claimed dependence on the state. The entanglement-wedge derivation is attributed to [13], not to this source. (LLM, conf=0.78)

    Experimental — accuracy not yet measured
  • A small diary thrown into the black hole early in evaporation can be reconstructed from Hawking radiation immediately after the Page time; a small diary thrown after the Page time can be reconstructed after waiting the scrambling time.

    “A small diary thrown into the black holes early in the evaporation can therefore be reconstructed from the Hawking radiation immediately after the Page time.A small diary thrown into the black hole after the Page time can be reconstructed after waiting for the scrambling time.These two results constitute the Hayden-Preskill decoding criterion [8].”

    From Entanglement wedge reconstruction and the information paradox (2020) · cites this paper as [8]

    The paper’s discussion of its two main conclusions says that information deposited before the halfway point emerges almost immediately afterward, while information deposited later can be recovered rapidly. The Introduction estimates the later recovery time as the greater of O(krS) and O(rS log(rS/lP)); for a small diary, the latter is the proposed mixing timescale. The claim omits that this timescale depends on speculative assumptions about rapid black-hole thermalization. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • The time delay in y+_A can be interpreted as the scrambling time in the thermal system with temperature T(t) and gives a geometric realization of the Hayden-Preskill protocol.

    “This time delay can be interpreted as the scrambling time in the thermal system with temperature T (t) and gives a nice geometric realization of the Hayden-Preskill protocol [1,2,55].”

    From Replica wormholes for an evaporating 2D black hole (2021) · cites this paper as [55]

  • After Page time the position of the QES geometrically realizes the Hayden-Preskill time for information mirroring, so information thrown into the black hole can be recovered from the Hawking radiation after the Hayden-Preskill time.

    “After Page time the position of the QES in all such setups geometrically realizes the Hayden-Preskill time for information mirroring [146] (more discussion in Sect.5.3.1)[49].More precisely, if some information is thrown into the blackhole post Page time then after the Hayden Preskill time the information crosses the QES.Therefore, the information escapes the entanglement wedge of the boundary and”
  • An extension of Page's argument implies that old black holes past their Page time would act as quantum information mirrors following the Hayden-Preskill thought experiment.

    “An extension of Page's argument implies that old black holes (past its Page time) would act as quantum information mirrors following a thought experiment and its analysis due to Hayden and Preskill [146] as illustrated in Fig. 26.”

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Cites

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Research works printed but not linked: 4

  1. [6]6. C. Dankert, R. Cleve, J. Emerson and E. Livine, Exact and approximate unitary 2-designs: constructions and applications, quant-ph/0606161. · arXiv
  2. [9]9. L. Susskind and J.S. Lindesay, Black holes, information, and the string theory revolution: the holographic universe, Singapore, World Scientific (2005).
  3. [15]15. S. Lloyd, Black holes, demons, and loss of coherence: how complex systems get information and what they do with it, Rockefeller University Ph.D. thesis (1988).
  4. [20]20. M.L. Mehta, Random matrices, Amsterdam, Elsevier (2004).

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Authors
Hayden, P., & Preskill, J.
Affiliations
  • McGill University (CA)
  • California Institute of Technology (US)
Venue
Journal of High Energy Physics
Published
2007-09-26
Volume
2007
Issue
09
Pages
120-120
ISSN
1029-8479 (ISSN-L)
OpenAlex
W2129872856
Cited by
1,332
References
33
Citations by year
2026: 89 · 2025: 157 · 2024: 133 · 2023: 125 · 2022: 113 · 2021: 134 · 2020: 114 · 2019: 93 · 2018: 71 · 2017: 50 · 2016: 52 · 2015: 34 · 2014: 50 · 2013: 45 · 2012: 19
FWCI
6.99
Type
journal article
Language
en
Open access
Locations
  • Journal of High Energy Physics (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • National Science Foundation (0456720)
  • U.S. Department of Energy (FG0392ER40701)
  • Alfred P. Sloan Foundation
  • Canadian Institute for Advanced Research
  • McGill University
  • Canada Research Chairs
  • Fonds Québécois de la Recherche sur la Nature et les Technologies
  • Mitacs
  • Institut Périmètre de physique théorique
  • Natural Sciences and Engineering Research Council of Canada
  • Army Research Office (W911NF)
Topics
  • Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Black Holes and Theoretical Physics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum many-body systems
  • Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
Keywords
Hawking radiation, black hole complementarity, quantum error-correcting codes, quantum erasure channel, black hole evaporation

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