Renyi entropy for spherical monodromy of free scalar fields in even dimensions
High Energy Physics - Theory
2022-01-11 v3
Abstract
The effect of a co--dimension--2 spherical monodromy defect on the free--field theory of a conformal scalar is investigated. The conformal anomaly is computed (in two ways) and thence the R\'enyi and entanglement entropies. The central charge is found to be negative for a range of monodromy flux.The calculations are pursued for any even dimensional sphere. A Possible conflict with existing results is raised.
Cite
@article{arxiv.2112.09031,
title = {Renyi entropy for spherical monodromy of free scalar fields in even dimensions},
author = {J. S. Dowker},
journal= {arXiv preprint arXiv:2112.09031},
year = {2022}
}
Comments
7 pages, 1 figure. Minor changes and corrections. Reference added. Final comment expanded