Out-of-Bounds Hydrodynamics in Anisotropic Dirac Fluids
Out-of-Bounds Hydrodynamics in Anisotropic Dirac Fluids
We study hydrodynamic transport in two-dimensional, interacting electronic systems with merging Dirac points at charge neutrality. The dispersion along one crystallographic direction is Dirac-like, while it is Newtonian-like in the orthogonal direction. As a result, the electrical conductivity is metallic in one and insulating in the other direction. The shear …