Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2000-01-03
Prog.Theor.Phys.Suppl. 139 (2000) 204
Physics
Condensed Matter
Statistical Mechanics
10 pages, Latex, 4 figures included, invited talk to the Int. school/Conf. on "Let's face Chaos Through Nonlinear Dynamics" Ma
Scientific paper
10.1143/PTPS.139.204
We study chaos in the Hamiltonian Mean Field model (HMF), a system with many degrees of freedom in which $N$ classical rotators are fully coupled. We review the most important results on the dynamics and the thermodynamics of the HMF, and in particular we focus on the chaotic properties.We study the Lyapunov exponents and the Kolmogorov--Sinai entropy, namely their dependence on the number of degrees of freedom and on energy density, both for the ferromagnetic and the antiferromagnetic case.
Latora Vito
Rapisarda Andrea
Ruffo Stefano
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