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Lyapunov Exponent Spectrum for Two-Mode Model in Spin-Wave Chaos |
HE Yuquan;CHI Ruidong;YU Jinlong |
Department of Physics, Tianjin University, Tianjin 300072 |
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Cite this article: |
HE Yuquan, CHI Ruidong, YU Jinlong 1992 Chin. Phys. Lett. 9 435-437 |
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Abstract The results of numerical experiments on the two-mode model for yttrium iron garnet sphere in the parallel-pumping configuration are reported and the complete Lyapunov exponent spectrum is presented. A rather complicated structure of the Lyapunov exponent spectrum can be recognized by the appearance of the associated peak in the Kolmogorov-Sinai entropy and the Lyapunov dimension diagrams. The results confirm an important connexion between the effective number of spin-wave modes involved and the Lyapunov dimension of the attractors.
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Keywords:
75.30.Ds
05.45.+b
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Published: 01 August 1992
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