Fluxon Dynamics in Discrete Sine Gordon System

  • G. Filatrella
  • S. Matarazzo
  • S. Pagano
Part of the NATO ASI Series book series (NSSB, volume 312)


Fluxon propagation in Long Josephson Junctions (LJJ) has been thoroughly investigated in past years both as a model system for soliton dynamics1 and in view of possible practical applications2. The electrodynamics of a LJJ is described by a perturbed version of the well known sine-Gordon Equation (PSGE), its kink solution corresponding to a magnetic flux quantum propagating in the junction barrier. Recently has attracted considerable interest solitons propagation in arrays of small coupled Josephson junctions3. In this paper we focus our attention on a system constituted of by a one dimensional array of coupled Josephson Junctions, designed in such a way to generate microwave radiation through a controlled fluxon dynamics.


Microwave Oscillator Kink Solution Magnetic Flux Quantum Equivalent Electrical Model Couple Josephson Junction 
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  1. 1.
    T.A. Fulton and R.C. Dynes, ”Single vortex propagation in Josephson tunnel junctions”, Solid State Commun. 12 (1973) 57.ADSCrossRefGoogle Scholar
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    D.W. McLaughlin and A.C. Scott, ”Perturbation analysys of fluxon dynamics”, Phys. Rev A18, (1978) 1652.ADSGoogle Scholar
  3. 3.
    S. Hontsu and J. Ishii, ”Fluxon propagation on a parallel array of microbridge-type Josephson junctions” J. Appl. Phys. 63 (1988) 2021.ADSCrossRefGoogle Scholar
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    see e. g. A. Barone and G. Paternó, “Physics and Applications of Josephson Effect”, Wiley, New York (1982).CrossRefGoogle Scholar
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    S. Pagano, R. Monaco and G. Costabile, “Microwave oscillator using arrays of long Josephson Junctions” IEEE Trans. Magn. MAG-25, 1080 (1989).ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1993

Authors and Affiliations

  • G. Filatrella
    • 1
    • 2
  • S. Matarazzo
    • 3
  • S. Pagano
    • 3
  1. 1.LAMF and Physics Laboratory 1Technical University of DenmarkLyngbyDenmark
  2. 2.Physics DepartmentUniversity of SalernoBaronissiItaly
  3. 3.Istituto di CiberneticaCNRArco FeliceItaly

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