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Stability of bunched fluxons in magnetically coupled Josephson junctions

Niels Gro/nbech-Jensen, David Cai, and Mogens R. Samuelsen
Phys. Rev. B 48, 16160(R) – Published 1 December 1993
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Abstract

The stability of bunched fluxon states in inductively coupled Josephson junctions is analyzed for fluxons of both equal and opposite polarity. We demonstrate that unipolar fluxons may form stable bunched states if the velocity is above a given threshold. The stability of these bunched states is based on the existence of two characteristic velocities in the coupled system. The result of analytical stability analysis is in excellent agreement with the results of numerical simulations.

  • Received 9 July 1993

DOI:https://doi.org/10.1103/PhysRevB.48.16160

©1993 American Physical Society

Authors & Affiliations

Niels Gro/nbech-Jensen and David Cai

  • Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545

Mogens R. Samuelsen

  • Physics Department, The Technical University of Denmark, 2800 Lyngby, Denmark

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Vol. 48, Iss. 21 — 1 December 1993

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