Josephson tunnel junctions with nonlinear damping for RSFQ-qubit circuit applications

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dc.creatorZorin, A. B.
dc.creatorKhabipov, M. I.
dc.creatorBalashov, D. V.
dc.creatorDolata, R.
dc.creatorBuchholz, F. -I.
dc.creatorNiemeyer, J.
dc.date2004-11-24
dc.date.accessioned2026-07-25T15:44:40Z
dc.descriptionWe demonstrate that shunting of Superconductor-Insulator-Superconductor Josephson junctions by Superconductor-Insulator-Normal metal (S-I-N) structures having pronounced non-linear I-V characteristics can remarkably modify the Josephson dynamics. In the regime of Josephson generation the phase behaves as an overdamped coordinate, while in the superconducting state the damping and current noise are strikingly small, that is vitally important for application of such junctions for readout and control of Josephson qubits. Superconducting Nb/AlO${_x}$/Nb junction shunted by Nb/AlO${_x}$/AuPd junction of S-I-N type was fabricated and, in agreement with our model, exhibited non-hysteretic I-V characteristics at temperatures down to at least 1.4 K.
dc.description4 pages incl. 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0411607
dc.identifierhttp://arxiv.org/abs/cond-mat/0411607
dc.identifierAppl. Phys. Lett. v.86, 032501 (2005)
dc.identifierdoi:10.1063/1.1852076
dc.identifier.urihttps://dspace.dare.co.zw/handle/123456789/36551
dc.subjectSuperconductivity
dc.titleJosephson tunnel junctions with nonlinear damping for RSFQ-qubit circuit applications
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