High-contrast dispersive readout of a superconducting flux qubit using a nonlinear resonator

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dc.creatorLupascu, A.
dc.creatorDriessen, E. F. C.
dc.creatorRoschier, L.
dc.creatorHarmans, C. J. P. M.
dc.creatorMooij, J. E.
dc.date2006-01-27
dc.date.accessioned2026-07-07T08:04:14Z
dc.date.available2026-07-07T08:04:14Z
dc.descriptionWe demonstrate high-contrast state detection of a superconducting flux qubit. Detection is realized by probing the microwave transmission of a nonlinear resonator, based on a SQUID. Depending on the driving strength of the resonator, the detector can be operated in the monostable or the bistable mode. The bistable operation combines high-sensitivity with intrinsic latching. The measured contrast of Rabi oscillations is as high as 87 %; of the missing 13 %, only 3 % is unaccounted for. Experiments involving two consecutive detection pulses are consistent with preparation of the qubit state by the first measurement.
dc.descriptionsubmitted to Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/cond-mat/0601634
dc.identifierhttp://arxiv.org/abs/cond-mat/0601634
dc.identifierPhys. Rev. Lett. 96, 127003 (2006)
dc.identifierdoi:10.1103/PhysRevLett.96.127003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/129876
dc.subjectMesoscale and Nanoscale Physics
dc.subjectSuperconductivity
dc.subjectQuantum Physics
dc.titleHigh-contrast dispersive readout of a superconducting flux qubit using a nonlinear resonator
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