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Vortices in Josephson arrays interacting with non-classical microwaves: the effect of dissipation

journal contribution
posted on 11.04.2013, 09:18 by A. Konstadopoulou, J.M. Hollingworth, Mark Everitt, A. Vourdas, T.D. Clark, J.F. Ralph
Vortices circulating in a ring made from a Josephson array in the insulating phase are studied. The ring contains a ‘dual Josephson junction’ through which the vortices tunnel. External non-classical microwaves are coupled to the device. The time evolution of this two-mode fully quantum mechanical system is studied, taking into account the dissipation in the system. The effect of the quantum statistics of the photons on the quantum statistics of the vortices is discussed. Entropic calculations quantify the entanglement between the two systems. Quantum phenomena in the system are also studied through Wigner functions. After a certain time (which depends on the dissipation parameters) these quantum phenomena are destroyed due to dissipation.

History

School

  • Science

Department

  • Physics

Citation

KONSTADOPOULOU, A. ... et al., 2003. Vortices in Josephson arrays interacting with non-classical microwaves: the effect of dissipation. European Physical Journal B, 32 (3), pp. 279 - 285.

Publisher

© EDP Sciences, Societ`a Italiana di Fisica, Springer-Verlag

Version

VoR (Version of Record)

Publication date

2003

Notes

Closed access. This article was published in the journal, European Physical Journal B [© EDP Sciences, Societ`a Italiana di Fisica, Springer-Verlag] and the definitive version is available at: http://dx.doi.org/10.1140/epjb/e2003-00098-2

ISSN

1434-6028

Language

en

Exports

Loughborough Publications

Keywords

Exports