Annular long Josephson junctions in a magnetic field: Engineering and probing the fluxon interaction potential

Authors
Wallraff, A Koval, Y Levitchev, M Fistul, MV Ustinov, AV
Citation
A. Wallraff et al., Annular long Josephson junctions in a magnetic field: Engineering and probing the fluxon interaction potential, J L TEMP PH, 118(5-6), 2000, pp. 543-553
Citations number
21
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF LOW TEMPERATURE PHYSICS
ISSN journal
00222291 → ACNP
Volume
118
Issue
5-6
Year of publication
2000
Pages
543 - 553
Database
ISI
SICI code
0022-2291(200003)118:5-6<543:ALJJIA>2.0.ZU;2-F
Abstract
The interaction of a Josephson fluxon with an external magnetic field-induc ed potential in a long Josephson junction is investigated experimentally. T he thermal activation, of the fluxon, from a potential well is observed and experiments probing its predicted quantum properties are discussed. A meth od for engineering a magnetic double-well potential for a fluxon is propose d and the use of the coupled fluxon states for quantum computation is sugge sted.