%0 Journal Article %T Thermodynamics, gravitational anomalies and cones %A Kristan Jensen %A R. Loganayagam %A Amos Yarom %J Physics %D 2012 %I arXiv %R 10.1007/JHEP02(2013)088 %X 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. %U http://arxiv.org/abs/1207.5824v1