Hydrodynamics of spin tr

Hydrodynamics of spin tra
Hydrodynamics of spin transport in the Haldane-Shastry chain

We use kinetic theory and the thermodynamic Bethe ansatz to derive the hydrodynamics of spin transport in the Haldane-Shastry chain. We obtain analytical expressions for relaxation from weak-domain-wall initial conditions and corresponding predictions for the spin Drude weight. We corroborate the la…