Classical analogs for Rabi-oscillations, Ramsey-fringes, and spin-echo in Josephson junctions - Condensed Matter > SuperconductivityReportar como inadecuado




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Abstract: We investigate the results of recently published experiments on the quantumbehavior of Josephson circuits in terms of the classical modelling based on theresistively and capacitively-shunted RCSJ junction model. Our analysis showsevidence for a close analogy between the nonlinear behavior of a pulsedmicrowave-driven Josephson junction at low temperature and low dissipation andthe experimental observations reported for the Josephson circuits.Specifically, we demonstrate that Rabi-oscillations, Ramsey-fringes, andspin-echo observations are not phenomena with a unique quantum interpretation.In fact, they are natural consequences of transients to phase-locking inclassical nonlinear dynamics and can be observed in a purely classical model ofa Josephson junction when the experimental recipe for the application ofmicrowaves is followed and the experimental detection scheme followed. Wetherefore conclude that classical nonlinear dynamics can contribute to theunderstanding of relevant experimental observations of Josephson response tovarious microwave perturbations at very low temperature and low dissipation.



Autor: Jeffrey E. Marchese, Matteo Cirillo, Niels Gronbech-Jensen

Fuente: https://arxiv.org/



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