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Supersymmetric Renyi Entropy in $CFT 2$ and $AdS 3$ by Giveon, Amit; Kutasov, David is a scholarly article available to read on EtoBox.

What is Supersymmetric Renyi Entropy in $CFT 2$ and $AdS 3$ about?

We show that in any two dimensional conformal field theory with (2, 2) supersymmetry one can define a supersymmetric analog of the usual Renyi entropy of a spatial region A. It differs from the Renyi entropy by a universal function (which we compute) of the central charge, Renyi parameter n and the geometric parameters of A. In the limit $n \to1$ it coincides with the entanglement entropy. Thus, it contains the same information as the Renyi entropy but its computation only involves correlation functions of chiral and anti-chiral operators. We also show that this quantity appears naturally in string theory on $AdS_3$.

Author

Giveon, Amit; Kutasov, David

Published

2015

Language

EN