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Computer simulations have been carried out for a system consisting of a pair of coupled superconducting weak links described by a noncapacitive, resistively shunted equivalent circuit. Both dc and ac bias currents are assumed for each link. It is found that for certain ranges of ac amplitude, chaotic behavior occurs. Coupling is crucial to this result---without it no chaos will appear.
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Nerenberg et al. (1984) studied this question.
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