Authors: Christopher P Herzog KuoWei Huang Kristan Jensen
Publish Date: 2016/01/27
Volume: 2016, Issue: 1, Pages: 162-
Abstract
Employing a conformal map to hyperbolic space cross a circle we compute the universal contribution to the vacuum entanglement entropy EE across a sphere in evendimensional conformal field theory Previous attempts to derive the EE in this way were hindered by a lack of knowledge of the appropriate boundary terms in the trace anomaly In this paper we show that the universal part of the EE can be treated as a purely boundary effect As a byproduct of our computation we derive an explicit form for the Atype anomaly contribution to the WessZumino term for the trace anomaly now including boundary terms In d = 4 and 6 these boundary terms generalize earlier bulk actions derived in the literatureThis article is published under an open access license Please check the Copyright Information section for details of this license and what reuse is permitted If your intended use exceeds what is permitted by the license or if you are unable to locate the licence and reuse information please contact the Rights and Permissions team
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