INVESTIGADORES
DORSO Claudio Oscar
artículos
Título:
Extended Gibbs ensembles with flow
Autor/es:
M.ISON; F.GULLMINELI; C.O. DORSO
Revista:
PHYSICAL REVIEW E - STATISTICAL PHYSICS, PLASMAS, FLUIDS AND RELATED INTERDISCIPLINARY TOPICS
Editorial:
American Physican Society (APS)
Referencias:
Lugar: NY; Año: 2007 vol. 76 p. 51120 - 51120
ISSN:
1063-651X
Resumen:
A statistical treatment of finite unbound systems in the presence of collective motions is presentedand applied to a classical Lennard-Jones Hamiltonian, numerically simulated through moleculardynamics. In the ideal gas limit, the flow dynamics can be exactly re-casted into effective time-dependent Lagrange parameters acting on a standard Gibbs ensemble with an extra total energyconservation constraint. Using this same ansatz for the low density freeze-out configurations of aninteracting expanding system, we show that the presence of flow can have a sizeable effect on themicrostate distribution.PACS numbers: 64.10.+h, 25.75.Ld, 05.10.-a
