String Theory seminar - Natalia Pinzani Fokeeva Seminar

Hydrodynamics has been recently recasted in an effective field theory language where the Schwinger-Keldysh formalism plays a central role. I will discuss the superspace implementation of this formalism which allows to efficiently impose the symmetries of the problem and to construct simple expressions for the effective action. I will also show how the entropy current with a positive definite divergence arises as a Noether current in this setup.