Unitary (semi)causal quantum-circuit representation of black hole evaporation

Abstract

A general structure of unitary evolution (evaporation) of the black hole, respecting causality imposed by the event horizon (semicausality), has been derived and presented in the language of quantum circuits. The resulting consequences for the evolution of the corresponding entanglement entropy and the entropy curve have been determined. As an illustration of the general scheme, two families of qubit toy models have been discussed: tensor product models and controlled non-product models.

arXiv commentfurther improvements, 16 pages, several figures

References in corpus (11)

• Information in Black Hole Radiation
• The entropy of bulk quantum fields and the entanglement wedge of an evaporating black hole
• An Apologia for Firewalls
• Causal and localizable quantum operations
• Semicausal operations are semilocalizable
• On quantum non-signalling boxes
• Qubit Transport Model for Unitary Black Hole Evaporation without Firewalls
• Unitary toy qubit transport model for black hole evaporation
• Causal unitary qubit model of black hole evaporation
• Fermionic model of unitary transport of qubits from a black hole
• Post-firewall paradoxes