Central Charge and Entangled Gauge Fields
High Energy Physics - Theory
2016-02-02 v5 General Relativity and Quantum Cosmology
Quantum Physics
Abstract
Entanglement entropy of gauge fields is calculated using the partition function in curved spacetime with a boundary. We derive a Gibbons-Hawking-like term from a Becchi-Rouet-Stora-Tyutin (BRST) action and a Wald-entropy-like codimension-2 surface term is produced. It is further suggested that boundary degrees of freedom localized on the entanglement surface generated from the gauge redundancy could be used to resolve a subtle mismatch in a universal conformal anomaly- entanglement entropy relation.
Cite
@article{arxiv.1412.2730,
title = {Central Charge and Entangled Gauge Fields},
author = {Kuo-Wei Huang},
journal= {arXiv preprint arXiv:1412.2730},
year = {2016}
}
Comments
8 pages. v5: boundary term corrected with improved notation, minor improvements. More references added