Controllable Flux Coupling for the Integration of Flux Qubits

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dc.creatorCosmelli, C.
dc.creatorCastellano, M. G.
dc.creatorChiarello, F.
dc.creatorLeoni, R.
dc.creatorSimeone, D.
dc.creatorTorrioli, G.
dc.creatorCarelli, P.
dc.date2004-03-29
dc.date.accessioned2026-07-07T02:57:19Z
dc.date.available2026-07-07T02:57:19Z
dc.descriptionWe show a novel method for controlling the coupling of flux-based qubits by means of a superconducting transformer with variable flux transfer function. The device is realized by inserting a small hysteretic dc SQUID with unshunted junctions, working as a Josephson junction with flux controlled critical current, in parallel to a superconducting transformer; by varying the magnetic flux coupled to the dc-SQUID, the transfer function for the flux coupled to the transformer can be varied. Measurements carried out on a prototype at 4.2 K show a reduction factor of about 30 between the 'on' and the 'off' states. We discuss the system characteristics and the experimental results.
dc.description10 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0403690
dc.identifierhttp://arxiv.org/abs/cond-mat/0403690
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23620
dc.subjectSuperconductivity
dc.titleControllable Flux Coupling for the Integration of Flux Qubits
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