Information Geometry of Hydrodynamics with Global Anomalies

Abstract

We construct information geometry for hydrodynamics with global gauge and gravitational anomalies in $1+1$ and $3+1$ dimensions. We introduce the metric on a parameter space and show that turning on non-zero rotations leads to a curvature on the statistical manifold. We calculate the curvature invariant and analyze its divergences, which occur at the transition points of the system. The transition points are universal and expressed in terms of ratios of anomaly coefficients.

arXiv comment5 pages, 3 tables, in v2 corrected and improved discussion of the flat space-time limit, references added