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

Preprint

17 July 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.nucl-th/0007038

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

EQUILIBRIUM REGIME
MICROCANONICAL SIMULATIONS
MICROSCOPIC DYNAMICS
MODEL
NEGATIVE SPECIFIC
NUCLEAR MULTIFRAGMENTATION
PHASE TRANSITION
PHYSICS COMMUNITY
THERMODYNAMIC
TRANSITION

All Related Versions

Version 1, 2000-07-17, ArXiv
Published version: Nuclear Physics A, 681 (1), 406.

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