约瑟夫森结的混沌行为在研究和应用方面都具有重要的价值。电阻-电容-电感并联约瑟夫森结在直流电流的驱动下会出现混沌行为,采用数值计算的方法,对混沌行为进行了研究。通过电压波形、频谱、对初始条件的敏感依赖以及奇怪吸引子,证实了混沌的存在,在此基础上首次提出了基于约瑟夫森结混沌行为的保密通信方案。 Josephson knot chaos behavior in the study and application of all have important value. Resistivity-capacitance-inductance parallel Josephson junction will appear chaotic behavior under the direct current drive, and the chaotic behavior is studied by numerical method. The existence of chaos is confirmed by the voltage waveform, the spectrum, the sensitive dependence on the initial conditions and the strange attractor. On this basis, the secure communication scheme based on the Josephson junction chaotic behavior is proposed for the first time.