https://doi.org/10.1140/epjp/s13360-025-07280-2
Regular Article
Influence of Gaussian colored noise on the stochastic resonance of a dimer in a bistable potential
Physics Department, National Institute of Technology Meghalaya, Saitsohpen, 793108, Sohra, Meghalaya, India
a
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Received:
6
November
2025
Accepted:
30
December
2025
Published online:
24
January
2026
Abstract
We study stochastic resonance (SR) of a dimer, confined in a bistable potential, in the presence of two types of Gaussian colored noise: (i) Ornstein–Uhlenbeck (OU) noise and (ii) power-limited (PL) colored noise. Under the influence of OU noise, the occurrence of SR is delayed, as the correlation time, τ, increases. On the other hand, in the case of PL-colored noise, the SR peak shows a non-monotonic variation with increasing correlation time, τ. Interestingly, a double peak resonance in the input energy as a function of the correlation time, τ, is observed, indicating the presence of multi-resonance. This suggests an enhancement of stochastic resonance driven by this type of colored noise.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2026
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
