Effect of coupling on stochastic resonance and stochastic antiresonance processes in a unidirectionally \(N\)-coupled systems in periodic sinusoidal potential. (English) Zbl 1400.82177
Summary: This work presents the characterization of stochastic resonance (SR) and stochastic antiresonance (SAR) in terms of hysteresis loop area (HLA). In connection with SR and SAR phenomena, we study the dynamics of a chain of particles coupled by nonlinear springs in a periodic sinusoidal potential. The dependence of the coupling parameter as well as the system size on SR and SAR is analysed. We consider the role played by the nonlinear coupling on the SR. We show that there is a range of coupling parameter where only SAR is observed, after this range the SR can occur, however, there also exists a range where neither SAR nor SR appear. It is noted that the maximum and the minimum of the average input energy increases with the coupling parameter. Also demonstrate that there exists an optimal value of the number of particles \(N\) for which the average input energy of the first particle reaches the saturation.
MSC:
| 82C22 | Interacting particle systems in time-dependent statistical mechanics |
| 34F15 | Resonance phenomena for ordinary differential equations involving randomness |
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