Phase transition in a triplet process.
We argue that the reaction-diffusion process 3A-->4A,3A-->2A exhibits a different type of continuous phase transition from an active into an absorbing phase. Because of the upper critical dimension d(c)> or =4/3 we expect the phase transition in 1+1 dimensions to be characterized by nontrivial fluctuation effects.
Park
Kwangho
K
Department of Physics, Korea University, Seoul 136-701, Korea.
Hinrichsen
Haye
H
Kim
In-Mook
IM