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A computational study of some Josephson junction circuits

机译:一些约瑟夫森结电路的计算研究

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An autonomous nonlinear dynamical system based upon a McCumber model of a Josephson junction has been studied by numerical and electronic simulations. The dynamical structure includes period doubling bifurcations leading to chaos and subharmonic phase locking leading to voltage steps apparently corresponding to fractional quantum effects. The Lyapunov spectrum is very rich, providing insight into the dynamics. It is emphasized that computational study can provide valuable results which are not accessible either from real experiments nor from analytic theory.
机译:通过数值和电子仿真研究了基于约瑟夫森结的麦克唐伯模型的自主非线性动力学系统。动力学结构包括导致混乱的周期加倍的分叉和导致电压阶跃的次谐波锁相,这显然对应于分数量子效应。 Lyapunov频谱非常丰富,可以提供有关动态的见解。要强调的是,计算研究可以提供有价值的结果,无论是实际实验还是分析理论都无法获得这些结果。

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