Modeling of quasiparticle-induced excitations of a Josephson charge-phase qubit

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dc.creatorKönemann, J.
dc.creatorZangerle, H.
dc.creatorEgeling, B.
dc.creatorHarke, R.
dc.creatorMackrodt, B.
dc.creatorDolata, R.
dc.creatorZorin, A. B.
dc.date2008-08-22
dc.date.accessioned2026-07-07T09:57:58Z
dc.date.available2026-07-07T09:57:58Z
dc.descriptionWe have analyzed quasiparticle transitions in an Al charge-phase qubit inducing a dynamic change of the qubit states. The time-averaged mixed state is related to the strong coupling of the qubit to an ensemble of non-equilibrium quasiparticles in the leads. Such quasiparticles tunnel stochastically on and off the island and can excite the qubit. Continuous monitoring of the qubit impedance at a frequency of 80 MHz shows the admixture of the excited state. We present a numerical description of these cyclic transitions and compare it with our experimental data.
dc.description13 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0808.3080
dc.identifierhttp://arxiv.org/abs/0808.3080
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/167543
dc.subjectSuperconductivity
dc.subjectMesoscale and Nanoscale Physics
dc.titleModeling of quasiparticle-induced excitations of a Josephson charge-phase qubit
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