BISTABLE KINETIC MODEL DRIVEN BY AN INHOMOGENEOUS NOISE

Steady state properties of a Brownian particle moving in a bistable kinetic system is investigated in the presence of an inhomogeneous noise. It is found that the inhomogeneous noise makes the system change from two-state system to one-state system, namely, the inhomogeneous noise can induce a phase transition. The particle will always move from a large intensity noise region to a small intensity region.