String Theory Journal Club

I will talk about our recent results with Maciej Łebek on “deriving” Navier-Stokes equations from microscopic dynamics of nearly integrable quantum models. Our approach connects the standard methods of the kinetic theory with recently developed generalized hydrodynamics. Besides formulating the Navier-Stokes equations, we find formulas for transport coefficients which take into account the integrable interactions non-perturbatively. As a result we find a non-zero viscosity, which in standard approaches is instead vanishing.