Entanglement Entropy, Trace Anomalies and Holography

Details Entanglement Entropy, Trace Anomalies and Holography Entanglement Entropy, Trace Anomalies and Holography

2008-02-07

arxiv.org/abs/0802.1017v2

Nucl.Phys.B801:1-24,2008

Physics

High Energy Physics

High Energy Physics - Theory

33 pages, 1 figure; v2: references and two footnotes added, typos corrected

Scientific paper

10.1016/j.nuclphysb.2008.04.015

The holographic representation of the entanglement entropy of four dimensional conformal field theories is studied. By generalizing the replica trick the anomalous terms in the entanglement entropy are evaluated. The same terms in the holographic representation are calculated by a method which does not require the solution of the equations of motion or a cut off. The two calculations disagree for rather generic geometries. The reasons for the disagreement are analyzed.

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