Microscopic dynamics of a phase transition: equilibrium vs out-of-equilibrium regime
Nuclear Theory
2009-11-06 v1 Astrophysics
Condensed Matter
Nuclear Experiment
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.
Keywords
Cite
@article{arxiv.nucl-th/0007038,
title = {Microscopic dynamics of a phase transition: equilibrium vs out-of-equilibrium regime},
author = {V. Latora and A. Rapisarda},
journal= {arXiv preprint arXiv:nucl-th/0007038},
year = {2009}
}
Comments
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