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Journal article

Fluxons and their interactions in a system of three stacked Josephson junctions

By Corria, Carlos1; Christiansen, Peter Leth2; Gaididei, Yuri Borisovich3; Muto, Virginia1; Pedersen, Niels Falsig4,5; Sørensen, Mads Peter2

From

University of the Basque Country1

Department of Informatics and Mathematical Modeling, Technical University of Denmark2

Department of Mathematics, Technical University of Denmark3

Electric Components, Department of Electrical Engineering, Technical University of Denmark4

Department of Electrical Engineering, Technical University of Denmark5

Fluxon dynamics in a system of three coupled driven damped sine-Gordon equations is investigated. Bunching of fluxons is observed. It is shown that fluxon-fluxon-fluxon bound states exist in a certain interval of the fluxon velocity. Attraction between fluxons occurs as a result of indirect fluxon-fluxon interaction mediated by Swihart waves.

To tackle the problem analytically a piece-wise linear approach is developed. The analytical approximations show good agreement with the results obtained by direct numerical simulations.

Language: English
Year: 2003
ISSN: 10953795 , 1550235x and 01631829
Types: Journal article
DOI: 10.1103/PhysRevB.68.035415
ORCIDs: Christiansen, Peter Leth and Sørensen, Mads Peter
Keywords

ANALYTIC SOLUTION BUNCHED FLUXONS CHERENKOV RADIATION DYNAMICS FLOW OSCILLATORS Josephson junctions PHASE-LOCKING SINE-GORDON SYSTEMS SINGLE-CRYSTALS SOLITONS SURFACE LOSSES

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