The European Physical Journal Special Topics

, Volume 147, Issue 1, pp 95–112 | Cite as

A system with distributed nonlinearities: The array of Josephson junctions

  • J.-G. Caputo
  • L. Loukitch


We derive and review a new long wave model describing the electro-dynamics of point Josephson junctions in a superconducting cavity. It consists in a wave equation with Dirac delta function sine nonlinearities. This model allows a detailed and integrated description of the device that was not available up to now. In the static case, a remarkable agreement was obtained with experiments. For the dynamical behavior, three different solutions are identified: the ohmic mode, the junction mode and a dissipative kink. These have distinct signatures in the current voltage characteristics making them easy to identify in experiments.


European Physical Journal Special Topic Josephson Junction Kink Solution Instantaneous Voltage Junction Device 
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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Authors and Affiliations

  • J.-G. Caputo
    • 1
    • 2
  • L. Loukitch
    • 1
  1. 1.Laboratoire de MathématiquesMont-Saint-Aignan CedexFrance
  2. 2.Laboratoire de Physique Théorique et Modélisation, Université de Cergy-Pontoise and CNRSCNRSFrance

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