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Observations on entanglement entropy in massive QFT's

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arxiv 1210.6858 v1 pith:FTQA2VIJ submitted 2012-10-25 hep-th

Aitor Lewkowycz , Robert C. Myers , Michael Smolkin This is my paper · ORCID
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keywords contributionsentanglemententropyfindmassiveagreeanalogousarea
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We identify various universal contributions to the entanglement entropy for massive free fields. As well as the `area' terms found in [1], we find other geometric contributions of the form discussed in [2]. We also compute analogous contributions for a strongly coupled field theory using the AdS/CFT correspondence. In this case, we find the results for strong and weak coupling do not agree.

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    New analytic anisotropic superfluid solutions and leading backreacted metrics are found in D=3 and D=4 Einstein-Scalar-U(1)xSU(2) Yang-Mills theory at the critical chemical potential mu = 4/sqrt(3).

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