Quantum information in loop quantum gravity
General Relativity and Quantum Cosmology
2015-06-25 v2 Quantum Physics
Abstract
A coarse-graining of spin networks is expressed in terms of partial tracing, thus allowing to use tools of quantum information theory. This is illustrated by the analysis of a simple black hole model, where the logarithmic correction of the Bekenstein-Hawking entropy is shown to be equal to the total amount of correlations on the horizon. Finally other applications of entanglement to quantum gravity are briefly discussed.
Cite
@article{arxiv.gr-qc/0512072,
title = {Quantum information in loop quantum gravity},
author = {Daniel R. Terno},
journal= {arXiv preprint arXiv:gr-qc/0512072},
year = {2015}
}
Comments
RevTex, 5 pages. Proceedings of QG'05, Cala Gonone, 2005 Relations of the coarse-graining and partial tracing are clarified, and the references are updated