Stochastic resonance and free oscillation in a sinusoidal potentials driven by a square-wave periodic force

Ivan Skhem Sawkmie and Mangal C. Mahato ()
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Ivan Skhem Sawkmie: North-Eastern Hill University
Mangal C. Mahato: North-Eastern Hill University

The European Physical Journal B: Condensed Matter and Complex Systems, 2021, vol. 94, issue 2, 1-10

Abstract: Abstract Recently, the occurrence of stochastic resonance in a sinusoidal potential driven by a sinusoidal force and a Gaussian white noise was experimentally verified. In this work, we experimentally show that stochastic resonance in sinusoidal potentials can also be observed when driven by a square-wave periodic force. The occurrence of stochastic resonance could be explained as due to the appearance of two dynamical states similar to what was done when driven by a sinusoidal force at large frequencies. However, at smaller frequencies of the square-wave drive, the free but damped oscillations of the output could be observed and the effective exponential damping coefficients measured. Graphic Abstract

Date: 2021
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DOI: 10.1140/epjb/s10051-020-00011-9

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