PIRSA:15110019

Hydrodynamics and the eightfold way to dissipation

Haehl, F. (2015). Hydrodynamics and the eightfold way to dissipation. Perimeter Institute. https://pirsa.org/15110019

Haehl, Felix. Hydrodynamics and the eightfold way to dissipation. Perimeter Institute, Nov. 12, 2015, https://pirsa.org/15110019 

          @misc{ pirsa_PIRSA:15110019,
            doi = {10.48660/15110019},
            url = {https://pirsa.org/15110019},
            author = {Haehl, Felix},
            keywords = {Strong Gravity},
            language = {en},
            title = {Hydrodynamics and the eightfold way to dissipation},
            publisher = {Perimeter Institute},
            year = {2015},
            month = {nov},
            note = {PIRSA:15110019 see, \url{https://pirsa.org}}
          }

Felix Haehl University of Southampton

DOI 10.48660/15110019
Collection
Talk Type Scientific Series
Subject

Abstract

This is the first of two talks on recent advances in our understanding of hydrodynamics as a generic theory of near-thermal dynamics of density matrices. In this talk I will focus on the structure of the hydrodynamic gradient expansion subject to the Second Law of thermodynamics. I will present an eightfold classification scheme and an explicit solution at all orders in derivatives of hydrodynamic transport consistent with the Second Law. I will also mention some connections with gravity and argue that the classification hints towards the existence of a gauge theory whose symmetry current is the entropy current. (The topic of my second, independently accessible, talk on Nov 20 will be a detailed field theoretic proposal for how these and other interesting features emerge from microscopic Schwinger-Keldysh formalism.)