对Josephson结分叉和混沌现象的仿真研究

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为了刻画在射频电流作用下Josephson结的动力学特性,本文构造了一个电学模型,同时给出各电学量的物理含义。经过计算机仿真计算,笔者绘制了Josephson结的整体分叉图,由此观察到Josephson结所呈现的分叉、锁频、超敏感性以及混沌等丰富的动力学行为。 In order to characterize the dynamics of the Josephson junction under RF current, an electrical model is constructed and the physical meaning of each electrical quantity is given. After computer simulation, the author draws the overall bifurcation diagram of the Josephson junction, thus observing the rich dynamic behavior of the Josephson junction such as bifurcation, frequency locking, hypersensitivity and chaos.
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