Open AccessTime scales of the evolution in bistable system and the reinforcement of stochastic resonance
Author(s) -
Min Lin,
Lu Fang
Publication year - 2009
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.58.2136
Subject(s) - bistability , stochastic resonance , statistical physics , hierarchy , noise (video) , signal (programming language) , scale (ratio) , physics , resonance (particle physics) , stochastic process , computer science , mathematics , quantum mechanics , statistics , artificial intelligence , image (mathematics) , programming language , economics , market economy
Stochastic fluctuations in the single potential well and probability transitions between the two potential wells exist in the bistable system under the action of noise. These two kinds of movements in different hierarchies have different time scales, and the fluctuations in the low hierarchy potential well have effects on the transitions between high hierarchy potential wells. When time scale of the first input periodical signal and noise-induced probability transitions between the potential wells achieves stochastic synchronization, the phenomenon of stochastic resonance happens. When the second driven periodic signal, the time scales of which matches that of the intrawell fluctuations, is introduced into the system, the phenomenon of frequency absorption happens and the effect of stochastic resonance in bistable system is reinforced.