Gaussian fluctuating Generally covariant diffusion

Abstract

We extend the previously developed [1] generally covariant formalism to include diffusion of conserved charges, and comment on the seming difference between the chemica potential term and the diffusion term

Comments: Extensively extended discussion and apprendix added. Coauthor added. Version accepted, Phys Rev D https://doi.org/10.1103/9bg6-shp6