Relativistic hydrodynamics with spin
arXiv:1807.04946 · doi:10.1016/j.nuclphysa.2018.10.010
Abstract
A newly proposed framework of perfect-fluid relativistic hydrodynamics for particles with spin 1/2 is briefly reviewed. The hydrodynamic equations follow entirely from the conservation laws for energy, momentum, and angular momentum. The incorporation of the angular-momentum conservation requires that the spin polarization tensor is introduced. It plays a role of a Lagrange multiplier conjugated to the spin tensor. The space-time evolution of the spin polarization tensor depends on the specific form chosen for the spin tensor.
contribution to the Quark Matter 2018 conference proceedings