Entanglement entropies of minimal models from null-vectors

Thomas Dupic, Benoit Estienne, Yacine Ikhlef

SciPost Phys. 4, 031 (2018) · published 18 June 2018

Abstract

We present a new method to compute R\'enyi entropies in one-dimensional critical systems. The null-vector conditions on the twist fields in the cyclic orbifold allow us to derive a differential equation for their correlation functions. The latter are then determined by standard bootstrap techniques. We apply this method to the calculation of various R\'enyi entropies in the non-unitary Yang-Lee model.

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2d minimal models Conformal bootstrap Entanglement entropy Orbifolds Rényi entropy Twist fields Yang-Lee model

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