Quantum computation vs. firewalls

A bstract In this paper we discuss quantum computational restrictions on the types of thought experiments recently used by Almheiri, Marolf, Polchinski, and Sully to argue against the smoothness of black hole horizons. We argue that the quantum computations required to do these experiments would tak...

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Veröffentlicht in:The journal of high energy physics Jg. 2013; H. 6; S. 1 - 56
Hauptverfasser: Harlow, Daniel, Hayden, Patrick
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Berlin/Heidelberg Springer-Verlag 01.06.2013
Springer Nature B.V
Schlagworte:
Classical and Quantum Gravitation
Computation
Constrictions
Elementary Particles
Entropy
Evaporation
Firewalls
High energy physics
Horizon
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Relativity Theory
Smoothness
String Theory
Black Holes in String Theory
AdS-CFT Correspondence
Black Holes
Models of Quantum Gravity
ISSN:1029-8479, 1029-8479
Online-Zugang:Volltext
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Zusammenfassung:A bstract In this paper we discuss quantum computational restrictions on the types of thought experiments recently used by Almheiri, Marolf, Polchinski, and Sully to argue against the smoothness of black hole horizons. We argue that the quantum computations required to do these experiments would take a time which is exponential in the entropy of the black hole under study, and we show that for a wide variety of black holes this prevents the experiments from being done. We interpret our results as motivating a broader type of nonlocality than is usually considered in the context of black hole thought experiments, and claim that once this type of nonlocality is allowed there may be no need for firewalls. Our results do not threaten the unitarity of black hole evaporation or the ability of advanced civilizations to test it.
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ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP06(2013)085