New universality of Lyapunov spectra in Hamiltonian systems
New universality of Lyapunov spectra in Hamiltonian systems
We show that new universality of Lyapunov spectra exists in Hamiltonian systems with many degrees of freedom. The universality appears in systems which are neither nearly integrable nor fully chaotic, and it is different from the one which is obtained in fully chaotic systems on one-dimensional chains as follows. One …