Resonant activation in a system with deterministic oscillations of barrier height.
A thermally relaxing system with a harmonically oscillating barrier height is considered. The dynamics of the system are described by a Smoluchowski equation with a time dependent right hand side. For both absorbing and reflecting boundary conditions, the solutions of this equation show that the oscillating system has the same resonant properties, and the same dependence on initial conditions, respectively, on the phase of the harmonic oscillations, as a conventional resonant system in which the barrier executes dichotomic Markovian fluctuations.
Klik
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Institute of Physics, Academia Sinica, Nankang, Taiwan 115, Taiwan.
Yao
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YD
D000465:Algorithms; D001703:Biophysics / Q000379:methods*; D008390:Markov Chains; D015233:Models, Statistical; D009991:Oscillometry; D013696:Temperature; D013997:Time Factors