title: Non-Gaussian equilibrium in a long-range Hamiltonian system.
abstract: We study the dynamics of a system of N classical spins with infinite-range interaction. We show that, if the thermodynamic limit is taken before the infinite-time limit, the system does not relax to the Boltzmann-Gibbs equilibrium, but exhibits different equilibrium properties, characterized by stable non-Gaussian velocity distributions, Lévy walks, and dynamical correlation in phase space.
authors.affiliation: Dipartimento di Fisica e Astronomia, Università di Catania, and INFN Sezione di Catania, Corso Italia 57, I-95129 Catania, Italy. vito.latora@ct.infn.it
authors.forename: V
authors.initials: V
authors.lastname: Latora
authors.forename: A
authors.initials: A
authors.lastname: Rapisarda
authors.forename: C
authors.initials: C
authors.lastname: Tsallis