Speaker: Dr. Enrico Speranza (University of Illinois at Urbana-Champaign)
Title: New developments of spin hydrodynamics
Recording of the talk: Video
Abstract: In this presentation I will discuss fundamental features of spin hydrodynamics, a novel theory of hydrodynamics which takes into account the dynamics of spin degrees of freedom. I will derive spin hydrodynamics from quantum kinetic theory using the Wigner-function formalism in a semiclassical expansion. The collision term contains nonlocal contributions responsible for the orbital-to-spin angular momentum conversion. Furthermore, in a proper choice of pseudo-gauge, the antisymmetric part of the energy-momentum tensor arises solely from these nonlocal contributions. This framework can be used to study polarization effects induced by vorticity in the hot and dense matter created in relativistic heavy-ion collisions.