Renyi entropy and C_T for p-forms on even spheres
High Energy Physics - Theory
2017-06-23 v2
Abstract
Renyi entropy and central charge, , are calculated for a coexact p--form on an even sphere with particular reference to the conformally invariant case. It is shown, for example, that the entanglement entropy is minus the standard conformal anomaly with no `shift' being required. The shift necessary for a conformal p--form, when using a hyperbolic technique, is predicted, on a numerical basis, to be (minus) the entanglement entropy of a conformal (p-1)-form. The central charges agree numerically with a general formula of Buchel {\it et al}.
Keywords
Cite
@article{arxiv.1706.04574,
title = {Renyi entropy and C_T for p-forms on even spheres},
author = {J. S. Dowker},
journal= {arXiv preprint arXiv:1706.04574},
year = {2017}
}
Comments
10 pages. Text revamped. Comparisons amplified and references added