A New Universality of Lyapunov Spectra in Hamiltonian Systems

نویسنده

  • Yoshiyuki Y. YAMAGUCHI
چکیده

A new universality of Lyapunov spectra {λi} is shown for Hamiltonian systems. The universality appears in middle energy regime and is different from another universality which can be reproduced by random matrices in the following two points. One is that the new universality appears in a limited range of large i/N rather than the whole range, where N is degrees of freedom. The other is Lyapunov spectra do not behave linearly while random matrices give linear behaviour even on 3D lattice. Quadratic terms with smaller nonlinear terms of potential functions play an intrinsic role in the new universality.

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تاریخ انتشار 1997