Black Holes as Rubik's Cubes

Abstract

We propose a unitary toy model of black hole evaporation, in which the entanglement between the interior and exterior degrees of freedom vanishes at late times. Our model possesses the information-free property and satisfies the niceness conditions discussed in the literature. A key feature of the model is that the Hilbert space of black hole internal states contains a vacuum state corresponding to the completely evaporated black hole, which can be reached from any initial state via the Hawking process. Our model suggests a novel quantum cosmological way in which information can get out of an evaporating black hole.

14 pages, 3 figures

References in corpus (4)

• Black holes as mirrors: quantum information in random subsystems
• The information paradox: A pedagogical introduction
• Typicality versus thermality: An analytic distinction
• Quantitative approaches to information recovery from black holes

Cited by in corpus (11)

• Black Holes: Complementarity or Firewalls?
• Time Dependence of Hawking Radiation Entropy
• Black holes, quantum information, and unitary evolution
• Models for unitary black hole disintegration
• Comments on black holes I: The possibility of complementarity
• A Random Unitary Circuit Model for Black Hole Evaporation
• Unitarity and fuzzball complementarity: "Alice fuzzes but may not even know it!"
• Note on entropy dynamics in the Brownian SYK model
• On the pattern of black hole information release
• Tensor Network Models of Unitary Black Hole Evaporation
• On the nxnxn Rubik's Cube