Phase Structure of Systems with Multiplicative Noise

G. Grinstein, M. A. Muñoz, Yuhai Tu
1996 Physical Review Letters  
The phase diagrams and transitions of nonequilibrium systems with multiplicative noise are studied theoretically. We show the existence of both strong and weak-coupling critical behavior, of two distinct active phases, and of a nonzero range of parameter values over which the susceptibility is infinite in any dimension. A scaling theory of the strong-coupling transition is constructed.
doi:10.1103/physrevlett.76.4376 pmid:10061274 fatcat:fr7cwieuxfacpdxs75kn2mdrrq