Parallel Simulation of Josephson Junctions With Multiplicative Noise
Vincenzo Pierro, Luigi Troiano, Elena Mejuto Villa, Sergio Pagano, Giovanni Filatrella
Abstract
Parallel graphic processing units have been employed for fast simulations of the switching dynam- ics of Josephson junctions subject to critical current fluctuations. Such a system is modeled by a nonequilibrium washboard model with multiplicative noise, for which analytical results are lacking. The proposed approach allows us to execute extensive numerical simulation in short time and with relatively inexpensive resources. This allows us to fully characterize the effect of the noise on the junction switching current distributions at realistic bias current sweeprates.
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