Abstract
The role of thermal and non-Gaussian noise on the dynamics of driven short overdamped Josephson junctions is studied. The mean escape time of the junction is investigated considering Gaussian, Cauchy-Lorentz and Lévy-Smirnov probability distributions of the noise signals. In these conditions we find resonant activation and the first evidence of noise enhanced stability in a metastable system in the presence of Lévy noise. For Cauchy-Lorentz noise source, trapping phenomena and power law dependence on the noise intensity are observed.
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Augello, G., Valenti, D. & Spagnolo, B. Non-Gaussian noise effects in the dynamics of a short overdamped Josephson junction. Eur. Phys. J. B 78, 225–234 (2010). https://doi.org/10.1140/epjb/e2010-10106-1
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DOI: https://doi.org/10.1140/epjb/e2010-10106-1