Hydrodynamics of a relativistic dissipative fluid with spin

Семинары

Лаборатория теоретической физики им. Н. Н. Боголюбова

Семинар «Теория адронной материи при экстремальных условиях»

Дата и время: среда, 5 марта 2025 г., в 16:00

Место: аудитория им. Блохинцева, Лаборатория теоретической физики им. Н. Н. Боголюбова, онлайн в Zoom

Тема семинара: «Hydrodynamics of a relativistic dissipative fluid with spin»

Докладчик: Давид Монтенегро

Аннотация:

Relativistic dissipative hydrodynamics has been part of a vigorous theoretical investigation, triggered by the experimental discovery of a vorticity-correlated hyperon spin polarization and vector resonance spin alignment in heavy ion collisions. In this work, we would like to extend our earlier analysis to include dissipative effects as well as spin effects. This is because, while spin is a necessary contributor to dissipation, it is not its only source, since of course momentum diffusion by microscopic collisions is still present. We formulate a lagrangian hydrodynamics including shear and bulk viscosity in the presence of spin density, and investigate it using the linear response functional formalism. The result is a careful accounting of all sound and vortex interactions close to local equilibrium and clarify how polarization and dissipation combine in different regimes.