Open AccessNumerical modeling of the Brownian motion in a bistable potential at medium friction
Author(s) -
M. V. Chushnyakova,
I. I. Gontchar,
E V Kulik,
V G Churankin
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2182/1/012090
Subject(s) - bistability , brownian motion , brownian dynamics , harmonic oscillator , statistical physics , classical mechanics , langevin equation , physics , mechanics , momentum (technical analysis) , quantum mechanics , finance , economics
We present results of the numerical modeling of the relaxation process for the Brownian motion in a bistable potential. Such a process is relevant for the recent nanoscale experiments reported in the literature. The modeling is based on the Langevin equations for the generalized coordinate and its conjugated momentum. First, the calculations are validated for the case of low thermal energy using a comparison with the analytical expressions for the harmonic oscillator. Next, the time evolution of the particle distribution in the bistable potential is analyzed.