2010•Journal of Henan Normal UniversityRequires access

Nonlinear Response of Brownian Motion's Particles in Periodic Potential

LV Lin-xia

Abstract

The Brownian motion of particles in a periodic potential driven by an external force is an important model,By using matrix continued fraction method,the corresponding Fokker-Planck equation of electron is solved,and the negative differential conductivity on superlattice transportion is obtained. The reswlt coincides with the experiments relation very well.

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Key concepts: Brownian motion, Nonlinear system, Fokker–Planck equation, Physics, Periodic potential, Motion (physics), Superlattice, Stochastic differential equation