Entanglement Entropy in Warped Conformal Field Theories
Abstract
We present a detailed discussion of entanglement entropy in (1+1)-dimensional Warped Conformal Field Theories (WCFTs). We implement the Rindler method to evaluate entanglement and Renyi entropies for a single interval and along the way we interpret our results in terms of twist field correlation functions. Holographically a WCFT can be described in terms of Lower Spin Gravity, a SL(2,R)xU(1) Chern-Simons theory in three dimensions. We show how to obtain the universal field theory results for entanglement in a WCFT via holography. For the geometrical description of the theory we introduce the concept of geodesic and massive point particles in the warped geometry associated to Lower Spin Gravity. In the Chern-Simons description we evaluate the appropriate Wilson line that captures the dynamics of a massive particle.
Keywords
Cite
@article{arxiv.1511.00707,
title = {Entanglement Entropy in Warped Conformal Field Theories},
author = {Alejandra Castro and Diego M. Hofman and Nabil Iqbal},
journal= {arXiv preprint arXiv:1511.00707},
year = {2017}
}
Comments
37 pages + appendix, 2 figures; v2: minor changes, references added; v3: references added; v4: error corrected in derivation of twist operator dimensions, results unchanged