Relativistic fluid dynamics and its extensions as an effective field theory
Seminar “Theory of Hadronic Matter under Extreme Conditions”
Date and Time: Thursday, 16 January 2020, at 11:30 AM
Venue: Blokhintsev Hall (4th floor), Bogoliubov Laboratory of Theoretical Physics
Seminar topic: “Relativistic fluid dynamics and its extensions as an effective field theory”
Speaker: Giorgio Torrieri (Instituto de Fisica Gleb Wataghin, Universidade Estadual de Campinas, Campinas, Sao Paulo, Brazil)
We examine hydrodynamics from the perspective of an effective field theory. The microscopic scale in this case is the thermalization scale, and the macroscopic scale is the gradient, with thermal fluctuations playing the role of ℏ. We argue that this method can be applied both, to consistently include thermal fluctuations in the theory, and to extend hydrodynamics to systems whose microscopic structure is non-trivial. For the latter, we discuss the case of spin polarization and gauge theories.