Entanglement Entropy for Relevant and Geometric Perturbations
High Energy Physics - Theory
2015-06-23 v2 Statistical Mechanics
General Relativity and Quantum Cosmology
Quantum Physics
Abstract
We continue the study of entanglement entropy for a QFT through a perturbative expansion of the path integral definition of the reduced density matrix. The universal entanglement entropy for a CFT perturbed by a relevant operator is calculated to second order in the coupling. We also explore the geometric dependence of entanglement entropy for a deformed planar entangling surface, finding surprises at second order.
Cite
@article{arxiv.1410.6530,
title = {Entanglement Entropy for Relevant and Geometric Perturbations},
author = {Vladimir Rosenhaus and Michael Smolkin},
journal= {arXiv preprint arXiv:1410.6530},
year = {2015}
}
Comments
18 pages + appendices