Manifestation of resonance-related chaos in coupled Josephson junctions

作者:Shukrinov Yu M; Hamdipour M; Kolahchi M R; Botha A E*; Suzuki M
来源:Physics Letters A, 2012, 376(47-48): 3609-3619.
DOI:10.1016/j.physleta.2012.10.046

摘要

Manifestation of chaos in the temporal dependence of the electric charge is demonstrated through the calculation of the maximal Lyapunov exponent, phase-charge and charge-charge Lissajous diagrams and correlation functions. It is found that the number of junctions in the stack strongly influences the fine structure in the current-voltage characteristics and a strong proximity effect results from the nonperiodic boundary conditions. The observed resonance-related chaos exhibits intermittency. The criteria for a breakpoint region with no chaos are obtained. Such criteria could clarify recent experimental observations of variations in the power output from intrinsic Josephson junctions in high temperature superconductors.

  • 出版日期2012-11-1