PIRSA:11100097

Fluctuations and Viscosity

Kovtun, P. (2011). Fluctuations and Viscosity. Perimeter Institute. https://pirsa.org/11100097

Kovtun, Pavel. Fluctuations and Viscosity. Perimeter Institute, Oct. 13, 2011, https://pirsa.org/11100097 

          @misc{ pirsa_PIRSA:11100097,
            doi = {10.48660/11100097},
            url = {https://pirsa.org/11100097},
            author = {Kovtun, Pavel},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Fluctuations and Viscosity},
            publisher = {Perimeter Institute},
            year = {2011},
            month = {oct},
            note = {PIRSA:11100097 see, \url{https://pirsa.org}}
          }

Pavel Kovtun University of Victoria

DOI 10.48660/11100097
Collection
Talk Type Scientific Series
Subject

Abstract

Sound waves with long-distance propagation are both a consequence of hydrodynamics, and a danger to hydrodynamics' very existence, as they violate the assumption of local equilibration. In the talk, I will discuss what the thermally excited sound and shear waves do to viscosity. In 2+1 dimensions, the shear viscosity and the diffusion constant cease being independent transport coefficients. In 3+1 dimensions, the fluctuations render the second-order hydrodynamics invalid.