PREPRINT
666B355D-E5B9-425B-8309-907B2AD13B99

Microscopic dynamics of a phase transition: equilibrium vs out-of-equilibrium regime

V. Latora and A. Rapisarda

Submitted on 17 July 2000

Abstract

We present for the first time to the nuclear physics community the Hamiltonian Mean Field (HMF) model. The model can be solved analytically in the canonical ensemble and shows a second-order phase transition in the thermodynamic limit. Numerical microcanonical simulations show interesting features in the out-of-equilibrium regime: in particular the model has a negative specific heat. The potential relevance for nuclear multifragmentation is discussed.

Preprint

Comment: 9 pages, Latex, 4 figures included, invited talk to the Int. Conf. CRIS2000 on "Phase transitions in strong interactions: status and perspectives", Acicastello (Italy) May 22-26 2000, submitted to Nucl Phys. A

Subjects: Nuclear Theory; Astrophysics; Condensed Matter; Nuclear Experiment

URL: https://arxiv.org/abs/nucl-th/0007038