INTERNAL AND EXTERNAL FLUCTUATION ACTIVATED NONEQUILIBRIUM REACTIVE RATE PROCESS

Abstract

An externally activated nonequilibrium anomalous reactive rate process is studied by taking into account both internal and external fluctuations in a unified way. The probability of diffusion passing over the saddle point and the reactive rate together with the effective transmission coefficient are calculated by the method of reactive flux. It is found that the fierceness of internal fluctuation is always harmful to the diffusion of particles. However, the external activation may be beneficial to the rate process.