Open AccessThe stochastic energetics resonance of bistable systems and efficiency of doing work
Author(s) -
Min Lin,
Meili Zhang,
Yongmei Huang
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.080509
Subject(s) - bistability , brownian dynamics , langevin equation , brownian motion , work (physics) , stochastic resonance , langevin dynamics , detailed balance , physics , statistical physics , classical mechanics , stochastic process , thermodynamics , quantum mechanics , computer science , mathematics , noise (video) , artificial intelligence , image (mathematics) , statistics
The interaction of work and heat between Brownian particles in a bistable system, the external periodic force and the thermal stochastic force are analyzed. The stochastic energy balance equation based on Langevin equation is established. For the Langevin equation subjected to periodic force, stochastic force and damping force, the method of combining dynamics and non-equilibrium thermodynamics is used. From force as the foothold changed into energy as the research core, the exchange of energy between system and environment and the efficiency of doing work are deeply analyzed with this method when the Brownian particle motion is along single trajectories, which reveals that the bistable system exhibits stochastic energetic resonance phenomenon.