Abstract
We discuss properties of interpolating geometries in three dimensional gravity in the presence of a chiral anomaly. This anomaly, which introduces an unbalance between left and right central charges, is protected under RG flows. For this simple reason it is impossible to gap a system with such an anomaly. Our goal is to discuss how holography captures this basic and robust feature. We demonstrate the absence of a mass gap by analysing the linearized spectrum and holographic entanglement entropy of these backgrounds in the context of AdS3/CFT2.
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Belin, A., Castro, A. & Hung, LY. Fake gaps in AdS3/CFT2 . J. High Energ. Phys. 2015, 145 (2015). https://doi.org/10.1007/JHEP11(2015)145
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DOI: https://doi.org/10.1007/JHEP11(2015)145