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Abstract: A two-state system TSS under time-periodic perturbations to be regarded asinput signals is studied in connection with self-tuning ST of threshold andstochastic resonance SR. By ST, we observe the improvement of signal-to-noiseratio SNR in a weak noise region. Analytic approach to a tuning equationreveals that SNR improvement is possible also for a large noise region and thisis demonstrated by Monte Carlo simulations of hopping processes in a TSS. STand SR are discussed from a little more physical point of energy transferdissipation rate, which behaves in a similar way as SNR. Finally ST isconsidered briefly for a double-well potential system DWPS, which is closelyrelated to the TSS.



Autor: Boyoung Seo, Raishma Krishnan, Toyonori Munakata

Fuente: https://arxiv.org/







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