6533b7d1fe1ef96bd125d8af
RESEARCH PRODUCT
Non-Gaussian noise effects in the dynamics of a short overdamped Josephson junction
G. AugelloDavide ValentiBernardo Spagnolosubject
PhysicsJosephson effectCondensed matter physicsnoise-induced effectGaussianQuantum noiseShot noiseRandom walk; noise-induced effects; Lévy noise; Josephson junctionRandom walkCondensed Matter PhysicsStability (probability)Power lawSettore FIS/03 - Fisica Della MateriaElectronic Optical and Magnetic MaterialsLévy noisesymbols.namesakeGaussian noiseJosephson junctionsymbolsNoise (radio)description
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 Levy-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 Levy noise. For Cauchy-Lorentz noise source, trapping phenomena and power law dependence on the noise intensity are observed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-11-01 |