We study the relaxation dynamics of a Hamiltonian system of N fully coupled XY spins. The thermodynamicsof the system predicts a ferromagnetic and a paramagnetic phase. Starting from out-of-equilibrium initialconditions, the dynamics at constant energy drives the system into quasistationary states (QSSs) characterizedby dynamical frustration. We introduce the spin polarization as an order parameter which allows us to interpretthe dynamically generated QSS regime as a glassy phase of the model.
Glassy phase in the Hamiltonian Mean Field model
PLUCHINO, ALESSANDRO;LATORA, Vito Claudio;RAPISARDA, Andrea
2004-01-01
Abstract
We study the relaxation dynamics of a Hamiltonian system of N fully coupled XY spins. The thermodynamicsof the system predicts a ferromagnetic and a paramagnetic phase. Starting from out-of-equilibrium initialconditions, the dynamics at constant energy drives the system into quasistationary states (QSSs) characterizedby dynamical frustration. We introduce the spin polarization as an order parameter which allows us to interpretthe dynamically generated QSS regime as a glassy phase of the model.File in questo prodotto:
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