Low-frequency measurement of the tunneling amplitude in a flux qubit

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dc.creatorGrajcar, M.
dc.creatorIzmalkov, A.
dc.creatorIl'ichev, E.
dc.creatorWagner, Th.
dc.creatorOukhanski, N.
dc.creatorHuebner, U.
dc.creatorMay, T.
dc.creatorZhilyaev, I.
dc.creatorHoenig, H. E.
dc.creatorGreenberg, Ya. S.
dc.creatorShnyrkov, V. I.
dc.creatorBorn, D.
dc.creatorKrech, W.
dc.creatorMeyer, H. -G.
dc.creatorBrink, Alec Maassen van den
dc.creatorAmin, M. H. S.
dc.date2003-03-31
dc.date2004-01-12
dc.date.accessioned2026-07-07T02:50:32Z
dc.date.available2026-07-07T02:50:32Z
dc.descriptionWe have observed signatures of resonant tunneling in an Al three-junction qubit, inductively coupled to a Nb LC tank circuit. The resonant properties of the tank oscillator are sensitive to the effective susceptibility (or inductance) of the qubit, which changes drastically as its flux states pass through degeneracy. The tunneling amplitude is estimated from the data. We find good agreement with the theoretical predictions in the regime of their validity.
dc.descriptionREVTeX4, 3pp., 3 EPS figures. v2: new sample, textual clarifications. v3: minor polishing; final, to appear in PRB Rapids
dc.identifierhttps://arxiv.org/abs/cond-mat/0303657
dc.identifierhttp://arxiv.org/abs/cond-mat/0303657
dc.identifierPhys. Rev. B 69, 060501(R) (2004)
dc.identifierdoi:10.1103/PhysRevB.69.060501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21137
dc.subjectSuperconductivity
dc.subjectMesoscale and Nanoscale Physics
dc.subjectQuantum Physics
dc.titleLow-frequency measurement of the tunneling amplitude in a flux qubit
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