Search results for "COOPER-PAIR BOX"

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EFFECT OF LOW-FREQUENCY NOISE ON ADIABATIC PASSAGE IN A SUPERCONDUCTING NANOCIRCUIT

2011

Recent experiments have demonstrated coherent phenomena in three-level systems based on superconducting nanocircuits. This opens the possibility to detect Stimulated Raman Adiabatic Passage (STIRAP) in artificial atoms. Low-fequency noise (often 1/f) is one of the main sources of decoherence in these systems, and we study its effect on the transfer efficiency. We propose a way to analyze low frequency fluctuations in terms of fictitious correlated fluctuations of external parameters. We discuss a specific implementation, namely the Quantronium setup of a Cooper-pair box, showing that optimizing the trade-off between efficient coupling and protection against noise may allow us to observe co…

SuperconductivityPhysicsCouplingQuantum decoherenceCOOPER-PAIR BOX; STIRAP; NOISEPhysics and Astronomy (miscellaneous)Condensed matter physicsSTIRAP; quantronium; coherent transfer population; Zener transition; three-level system.three-level system.COOPER-PAIR BOXInfrasoundStimulated Raman adiabatic passageLow frequencyNoise (electronics)three-level systemSettore FIS/03 - Fisica Della MateriaNOISEZener transitionQuantum electrodynamicsSTIRAPAdiabatic processcoherent transfer populationquantronium
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