Fluxon interactions

D. W. McLaughlin, A. C. Scott

Research output: Contribution to journalArticlepeer-review


A simple perturbation method is used to study fluxon (soliton) interactions on a Josephson transmission line (JTL). This technique efficiently provides information needed in the design of JTL computer circuits. We study (i) fluxons interacting with other fluxons in the presence of both dissipation and an externally controlled current bias and (ii) fluxons interacting with microshorts. The dynamics of fluxon pinning to a microshort is described and threshold conditions for fluxon-antifluxon annihilation are presented. We emphasize that in this process free fluxons become bound into "breathers", which in turn decay into "photons" of the Josephson waveguide.

Original languageEnglish (US)
Pages (from-to)545-547
Number of pages3
JournalApplied Physics Letters
Issue number10
StatePublished - 1977

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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