Partial yet definite emergence of the Kardar-Parisi-Zhang class in
isotropic spin chains
Partial yet definite emergence of the Kardar-Parisi-Zhang class in
isotropic spin chains
Integrable spin chains with a continuous non-Abelian symmetry, such as the one-dimensional isotropic Heisenberg model, show superdiffusive transport with little theoretical understanding. Although recent studies reported a surprising connection to the Kardar-Parisi-Zhang (KPZ) universality class in that case, this view was most recently questioned by discrepancies in full counting statistics. …