Chaos in long Josephson junctions without external rf driving force
W. J. Yeh, O. G. Symko, D. J. Zheng
DOI 10.1103/PhysRevB.42.4080 · Physical Review B
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Abstract
Simulations of long Josephson junctions in an external magnetic field show a variety of chaotic behaviors. They consist of period-doubling bifurcation, intermittency between and within Fiske steps, and quasiperiodic motion at Fiske steps. A physical explanation for the chaotic behavior is presented. The influence of surface resistance to the chaotic motion is investigated. A diagram in terms of dissipation and magnetic field is constructed to show where chaos occurs for a long junction.
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