Causal unitary qubit model of black hole evaporation
Quantum Physics
2021-10-26 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
A new simple qubit model of black hole evaporation is proposed. The model operates on four qubits and is defined in terms of quantum gates and a quantum circuit. The chief features of the model include explicit unitarity and (most notably) causality which is understood as the impossibility of the transfer of information from the interior of the black hole through its horizon. The corresponding von Neumann entanglement entropy yields a crude (four-qubit) approximation of the Page curve.
Keywords
Cite
@article{arxiv.2104.14901,
title = {Causal unitary qubit model of black hole evaporation},
author = {Bogusław Broda},
journal= {arXiv preprint arXiv:2104.14901},
year = {2021}
}
Comments
8 pages, 3 figures (including 8 pictures), minor editorial improvements in this version