Fast Kawasaki spin exchange limit of spin-facilitated kinetic Ising models.
We study a Fock-space operator technique for describing the stochastic kinetics of a spin-facilitated kinetic Ising model. We focus in particular on the diffusion (fast Kawasaki exchange) limit in which the kinetics can be described by a single mean field evolution equation. We derive some general criteria for the approximative validity of mean field theory for the case of a nondiverging diffusion coefficient of the local spin states.
Schulz
M
M
Abteilung für Theoretische Physik, Universität Ulm, Germany.
Reineker
P
P
Frisch
H L
HL