The Josephson Bifurcation Amplifier for Quantum Measurements

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dc.creatorSiddiqi, I.
dc.creatorVijay, R.
dc.creatorPierre, F.
dc.creatorWilson, C. M.
dc.creatorFrunzio, L.
dc.creatorMetcalfe, M.
dc.creatorRigetti, C.
dc.creatorDevoret, M. H.
dc.date2005-07-11
dc.date.accessioned2026-07-07T03:05:57Z
dc.date.available2026-07-07T03:05:57Z
dc.descriptionWe have constructed a new type of amplifier whose primary purpose is the readout of superconducting quantum bits. It is based on the transition of an RF-driven Josephson junction between two distinct oscillation states near a dynamical bifurcation point. The main advantages of this new amplifier are speed, high-sensitivity, low back-action, and the absence of on-chip dissipation. Using pulsed microwave techniques, we demonstrate bifurcation amplification in nanofabricated Al junctions and verify that the performance predicted by theory is attained.
dc.descriptionTo be published in the proceedings of the 2004 MQC2 conference
dc.identifierhttps://arxiv.org/abs/cond-mat/0507248
dc.identifierhttp://arxiv.org/abs/cond-mat/0507248
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/26638
dc.subjectSuperconductivity
dc.subjectStatistical Mechanics
dc.titleThe Josephson Bifurcation Amplifier for Quantum Measurements
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