A class of states supporting diffusive spin dynamics in the isotropic Heisenberg model
A class of states supporting diffusive spin dynamics in the isotropic Heisenberg model
The spin transport in the isotropic Heisenberg model in the sector with zero magnetization is generically super-diffusive. Despite that, we here demonstrate that for a specific set of domain-wall-like initial product states it can instead be diffusive. We theoretically explain the time evolution of such states by showing that in …