Islands for black holes in a hybrid quantum state
High Energy Physics - Theory
2024-11-15 v1 General Relativity and Quantum Cosmology
Abstract
Following our previous work on hybrid quantum states in the RST model, we study its most interesting solution representing a completely regular spacetime with the structure of causal diamond, containing an apparent horizon and radiation at infinity. Adapting recent computations of radiation entropy in terms of the entropy of entanglement, we find that this entropy follows a Page curve. This confirms our previous result [1], which was obtained by directly calculating the thermodynamic entropy of radiation at infinity. We also investigate the presence of a possible island in these systems, and find that it does not seem to play a role in contributing to the generalized black hole entropy.
Keywords
Cite
@article{arxiv.2411.09574,
title = {Islands for black holes in a hybrid quantum state},
author = {Yohan Potaux and Debajyoti Sarkar and Sergey N. Solodukhin},
journal= {arXiv preprint arXiv:2411.09574},
year = {2024}
}