Abstract

For non-equilibrium quasi-stationary states (QSS), we inspect the shape of the orientations and moments trajectories in time for the dipole-type Hamiltonian mean-field (d-HMF) model (Atenas and Curilef, 2017). We describe the quasi-stationary states that appear in out-of-equilibrium dynamics. Our results related to the orientations and momenta trajectories confirm the sen-sitive character with the initial conditions on the d-HMF model. Additionally, a qualitative relationship between particle dynamics and QSS matches the theoretical description of systems with long-range interactions out-of-equilibrium.