SFB Extra Seminar

The computation of transport in strongly coupled field theories is a challenging problem and has attracted physicists from different fields : the quark gluon plasma and the ultracold fermi gas.
In the first half of the talk, I will review how gauge gravity duality provides a tool to understand shear viscosity in  a class of strongly interacting anisotropic field theories in 3 spatial dimensions.
Based on the general results from gravity side, we will motivate an experimental setup involving ultacold atoms where such effects can be probed.

In the second half of the talk, we will use a combination of kinetic and hydrodynamic approaches to shed light on transport properties in one dimensional Tomonaga Luttinger theory in presence of integrability breaking interactions.
In particular,  we will find that the hydrodynamic version of the problem in the long time limit is related to the Kardar Parisi Zhang equation that arises in the study of surface growth.