https://doi.org/10.1140/epjc/s10052-024-12748-z
Regular Article - Theoretical Physics
Unitary (semi)causal quantum-circuit representation of black hole evaporation
Department of Theoretical Physics, Faculty of Physics and Applied Informatics, University of Łódź, Pomorska 149/153, 90-236, Łódź, Poland
a
boguslaw.broda@uni.lodz.pl
https://www.uni.lodz.pl/en/employee/boguslaw-broda
Received:
25
October
2023
Accepted:
2
April
2024
Published online:
22
April
2024
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.
© The Author(s) 2024
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