Four-qubit device with mixed couplings

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dc.creatorGrajcar, M.
dc.creatorIzmalkov, A.
dc.creatorvan der Ploeg, S. H. W.
dc.creatorLinzen, S.
dc.creatorPlecenik, T.
dc.creatorWagner, Th.
dc.creatorHuebner, U.
dc.creatorIl'ichev, E.
dc.creatorMeyer, H. -G.
dc.creatorSmirnov, A. Yu.
dc.creatorLove, Peter J.
dc.creatorBrink, Alec Maassen van den
dc.creatorAmin, M. H. S.
dc.creatorUchaikin, S.
dc.creatorZagoskin, A. M.
dc.date2005-09-21
dc.date2006-02-03
dc.date.accessioned2026-07-07T06:41:50Z
dc.date.available2026-07-07T06:41:50Z
dc.descriptionWe present the first experimental results on a device with more than two superconducting qubits. The circuit consists of four three-junction flux qubits, with simultaneous ferro- and antiferromagnetic coupling implemented using shared Josephson junctions. Its response, which is dominated by the ground state, is characterized using low-frequency impedance measurement with a superconducting tank circuit coupled to the qubits. The results are found to be in excellent agreement with the quantum-mechanical predictions.
dc.descriptionREVTeX 4, 5pp., 7 EPS figure files. N.B.: "Alec" is my first, and "Maassen van den Brink" my family name. v2: final published version, with changed title, different sample micrograph, and several clarifications
dc.identifierhttps://arxiv.org/abs/cond-mat/0509557
dc.identifierhttp://arxiv.org/abs/cond-mat/0509557
dc.identifierPhys. Rev. Lett._96_, 047006 (2006)
dc.identifierdoi:10.1103/PhysRevLett.96.047006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/101817
dc.subjectSuperconductivity
dc.subjectMesoscale and Nanoscale Physics
dc.subjectQuantum Physics
dc.titleFour-qubit device with mixed couplings
dc.typetext

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