Spin Drude weight for the integrable XXZ chain with arbitrary spin
Spin Drude weight for the integrable XXZ chain with arbitrary spin
Abstract Using generalized hydrodynamics (GHD), we exactly evaluate the finite-temperature spin Drude weight at zero magnetic field for the integrable XXZ chain with arbitrary spin and easy-plane anisotropy. First, we construct the fusion hierarchy of the quantum transfer matrices ( T -functions) and derive functional relations ( T - and …