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DOI: 10.1103/physrevlett.114.111602

Entanglement entropy in Galilean conformal field theories and flat holography

CAS-1 JCR-Q1 SCIE EI
Arjun BagchiRudranil BasuDaniel GrumillerMax Riegler
Physical Review Letters
Mar 2015
摘要
We present the analytical calculation of entanglement entropy for a class of two-dimensional field theories governed by the symmetries of the Galilean conformal algebra, thus providing a rare example of such an exact computation. These field theories are the putative holographic duals to theories of gravity in three-dimensional asymptotically flat spacetimes. We provide a check of our field theory answers by an analysis of geodesics. We also exploit the Chern-Simons formulation of three-dimensional gravity and adapt recent proposals of calculating entanglement entropy by Wilson lines in this context to find an independent confirmation of our results from holography.
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