Hydrodynamics formalism with Spin dynamics

Abstract

We review the key steps of the relativistic fluid dynamics formalism with spin degrees of freedom initiated recently. We obtain equations of motion of the expansion of the system from the underlying definitions of quantum kinetic theory for the equilibrium phase space distribution functions. We investigate the dynamics of spin polarization of the system in the Bjorken hydrodynamical background.

Comments: Presented at Criticality in QCD and the Hadron Resonance Gas, July 29-31, 2020; 5 figures