Abstract In this paper the nonlinear dynamical behaviour of a quantum cellular neural network (QCNN) by coupling Josephson circuits was investigated and it was shown that the QCNN using only two of them can cause the onset of chaotic oscillation. The theoretical analysis and simulation for the two Josephson-circuits-coupled QCNN have been done by using the amplitude and phase as state variables. The complex chaotic behaviours can be observed and then proved by calculating Lyapunov exponents. The study provides valuable information about QCNNs for future application in high-parallel signal processing and novel chaotic generators.
Received: 07 September 2006
Revised: 01 March 2007
Accepted manuscript online:
Fund: Project supported by the
Natural Science Foundation of Shaanxi Province,
China (Grant No~2005F20) and the Innovation Funds of the College of
Science, Air Force University of Engineering, China (Grant No~2007B003).} \\ %$^\dagger$E-mail: ...} % \vspace*{1.5mm}
Cite this article:
Wang Sen(王森), Cai Li(蔡理), Li Qin(李芹), and Wu Gang(吴刚) Chaotic phenomena in Josephson circuits coupled quantum cellular neural networks 2007 Chinese Physics 16 2631
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