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RESEARCH PRODUCT

INFLUENCE OF LENGTH ON THE NOISE DELAYED SWITCHING OF LONG JOSEPHSON JUNCTIONS

Kirill G. FedorovBernardo SpagnoloAndrey L. Pankratov

subject

Josephson effectPhysicsCondensed matter physicsJosephson phaseNoise inducedCondensed Matter - SuperconductivityApplied MathematicsFOS: Physical sciencesThermal fluctuationsJosephson energyWhite noisenoise delayed switchingSuperconductivity (cond-mat.supr-con)Pi Josephson junctionCondensed Matter::SuperconductivityModeling and SimulationEngineering (miscellaneous)

description

The transient dynamics of long overlap Josephson junctions in the frame of the sine-Gordon model with a white noise source is investigated. The effect of noise delayed decay is observed for the case of overdamped sine-Gordon equation. It is shown that this noise induced effect, in the range of small noise intensities, vanishes for junctions lengths greater than several Josephson penetration length.

https://doi.org/10.1142/s0218127408022111