New Insight into the Fluctuations of the Moving Vortex Lattice: Non-Gaussian Noise and Levy Flights

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dc.creatorScola, J.
dc.creatorPautrat, A.
dc.creatorGoupil, C.
dc.creatorSimon, Ch.
dc.creatorDomenges, B.
dc.creatorVillard, C.
dc.date2006-03-29
dc.date.accessioned2026-07-07T07:05:04Z
dc.date.available2026-07-07T07:05:04Z
dc.descriptionWe report measurements and analysis of the voltage noise due the to vortex motion, performed in superconducting Niobium micro-bridges. Noise in such small systems exhibits important changes from the behavior commonly reported in macroscopic samples. In the low biasing current regime, the voltage fluctuations are shown to deviate substantially from the Gaussian behavior which is systematically observed at higher currents in the so called flux-flow regime. The responsibility of the spatial inhomogeneities of the critical current in this deviation from Gaussian behavior is emphasized. We also report on the first investigation of the effect of an artificial pinning array on the voltage noise statistics. It is shown that the fluctuations can lose their stationarity, and exhibit a Levy flight-like behavior.
dc.descriptionaccepted for publication in Fluctuations and noise letters
dc.identifierhttps://arxiv.org/abs/cond-mat/0603790
dc.identifierhttp://arxiv.org/abs/cond-mat/0603790
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/109550
dc.subjectSuperconductivity
dc.subjectDisordered Systems and Neural Networks
dc.titleNew Insight into the Fluctuations of the Moving Vortex Lattice: Non-Gaussian Noise and Levy Flights
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