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arXiv · 1207.5824

Thermodynamics, gravitational anomalies and cones

Kristan Jensen·R. Loganayagam·Amos Yarom
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Abstract

By studying the Euclidean partition function on a cone, we argue that pure and mixed gravitational anomalies generate a "Casimir momentum" which manifests itself as parity violating coefficients in the hydrodynamic stress tensor and charge current. The coefficients generated by these anomalies enter at a lower order in the hydrodynamic gradient expansion than would be naively expected. In 1+1 dimensions, the gravitational anomaly affects coefficients at zeroth order in the gradient expansion. The mixed anomaly in 3+1 dimensions controls the value of coefficients at first order in the gradient expansion.

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Kristan Jensen, R. Loganayagam, Amos Yarom. 2012-07-24. Thermodynamics, gravitational anomalies and cones. https://doi.org/10.1007/jhep02(2013)088

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