V. Latora, A. Rapisarda, S. Ruffo
Published 1999-11-19Version 1
We discuss recent results obtained for the Hamiltonian Mean Field model. The model describes a system of N fully-coupled particles in one dimension and shows a second-order phase transition from a clustered phase to a homogeneous one when the energy is increased. Strong chaos is found in correspondence to the critical point on top of a weak chaotic regime which characterizes the motion at low energies. For a small region around the critical point, we find anomalous (enhanced) diffusion and L\'evy walks in a transient temporal regime before the system relaxes to equilibrium.
Comments: 7 pages, Latex, 6 figures included, Contributed paper to the Int. Conf. on "Statistical Mechanics and Strongly Correlated System", 2nd Giovanni Paladin Memorial, Rome 27-29 September 1999, submitted to Physica A
Journal: Physica A 280 (2000) 81
Glassy phase in the Hamiltonian Mean Field model
Action diffusion and lifetimes of quasistationary states in the Hamiltonian Mean Field model
Out of Equilibrium Solutions in the $XY$-Hamiltonian Mean Field model
