Europhys. Lett.
Volume 48, Number 2, October 1999
Page(s) 201 - 207
Section Condensed matter: electronic structure, electrical, magnetic and optical properties
Published online 01 September 2002
DOI: 10.1209/epl/i1999-00101-8

Europhys. Lett, 48 (2), pp. 201-207 (1999)

Dual Josephson phenomena with vortices

A. Vourdas

Department of Electrical Engineering and Electronics
University of Liverpool, Brownlow Hill - Liverpool L69 3GJ, UK

(received 26 March 1999; accepted in final form 20 August 1999)

PACS. 74.50${\rm +r}$ - Proximity effects, weak links, tunneling phenomena, and Josephson effects.


A dual quantum interference device (DQUID) is considered, made from a ring with circulating vortices and a weak link. A current feeds the center of the ring with a time-dependent charge Q(t). The dual Josephson equations which describe macroscopically the tunelling of vortices through the weak link are derived. Various types of the current are considered and the dual Josephson equations are solved.


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