Hartle-Hawking state is a maximum of entanglement entropy
General Relativity and Quantum Cosmology
2009-10-31 v2 High Energy Physics - Theory
Abstract
It is shown that the Hartle-Hawking state of a scalar field is a maximum of entanglement entropy in the space of pure quantum states satisfying the condition that backreaction is finite. In other words, the Hartle-Hawking state is a curved-space analogue of the EPR state, which is also a maximum of entanglement entropy.
Cite
@article{arxiv.gr-qc/9904005,
title = {Hartle-Hawking state is a maximum of entanglement entropy},
author = {Shinji Mukohyama},
journal= {arXiv preprint arXiv:gr-qc/9904005},
year = {2009}
}
Comments
Latex, 4 pages, Some comments are added on the "small backreaction condition"