https://doi.org/10.1140/epjb/s10051-020-00011-9
Regular Article - Statistical and Nonlinear Physics
Stochastic resonance and free oscillation in a sinusoidal potentials driven by a square-wave periodic force
Department of Physics, North-Eastern Hill University, 793022, Shillong, India
Received:
28
July
2020
Accepted:
18
November
2020
Published online:
3
February
2021
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.
© EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2021
