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

Article

关键词: SINE-GORDON SYSTEMS;    CHERENKOV RADIATION;    ANALYTIC SOLUTION;    FLOW OSCILLATORS;    SINGLE-CRYSTALS;    BUNCHED FLUXONS;    SURFACE LOSSES;    PHASE-LOCKING;    DYNAMICS;    SOLITONS;   

DOI  :  10.1103/PhysRevB.68.035415

来源: SCIE

【 摘 要 】

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.

【 授权许可】

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