Josephson arrays as quantum channels

Romito, A. and Bruder, C. and Fazio, R.. (2005) Josephson arrays as quantum channels. In: Realizing controllable quantum states - mesoscopic superconductivity and spintronics ; in the light of quantum computation. Singapore, pp. 241-246.

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Official URL: http://edoc.unibas.ch/dok/A5252826

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We show that one-dimensional Josephson junction arrays can behave as quantum channels and can be used to transfer quantum information between distant sites. In particular, we discuss simple protocols to realize, without external control, state transfer with high fidelity in Josephson chains. The channels do not require complicate gating but use the natural dynamics of a properly designed array. We analyze the influence of disorder both in the Josephson energies and in the background gate charges, and we propose an experiment, realizable with present-day technology, that may allow to implement these protocols.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik (Bruder)
UniBasel Contributors:Bruder, Christoph
Item Type:Conference or Workshop Item, refereed
Conference or workshop item Subtype:Conference Paper
Publisher:World Scientific
Note:Publication type according to Uni Basel Research Database: Conference paper
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Last Modified:22 Mar 2012 14:29
Deposited On:22 Mar 2012 14:07

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