Hydrodynamic approach to two-dimensional electron systems

The last few years have seen an explosion of interest in hydrodynamic effects interacting electron systems ultra-pure materials. One such material, graphene, is not only excellent platform for the experimental realization flow electrons, but also allows a controlled derivation equations on basis kinetic theory. resulting theory electronic transport graphene yields quantitative predictions experimentally relevant quantities, e.g. viscosity, electrical conductivity, etc. Here I review recent theoretical advances field, compare charge carriers with relativistic hydrodynamics and experiments, discuss applications approach to novel materials beyond graphene.