A New Approach to Non-Abelian Hydrodynamics

Understand

We present a new approach to describe hydrodynamics carrying non-Abelian macroscopic degrees of freedom.

• Based on the Kaluza-Klein compactification of a higher-dimensional neutral dissipative fluid on a group manifold, we obtain a d=4 colored dissipative fluid coupled to Yang-Mills gauge field.
• We calculate the transport coefficients of the new fluid, which show the non-Abelian character of the gauge group.
• In particular, we obtain group-valued terms in the gradient expansions and response quantities such as the conductivity matrix and the chemical potentials.