 |
 |
 |
|
|
|
| HAL : in2p3-00311563, version 1 |
| DOI : 10.1103/PhysRevLett.85.3587 |
| Fiche détaillée |  Récupérer au format |
|
|
| Physical Review Letters 85 (1985) 3587-3590 |
|
|
|
|
| Caloric Curves and Energy Fluctuations in the Microcanonical Liquid-Gas Phase Transition |
|
|
| Ph. Chomaz1V. Duflot1, 2F. Gulminelli2 |
|
|
| (1985) |
|
|
|
| In this paper we study a microcanonical lattice gas model with a constrained average volume. We show that the caloric curve explicitly depends on the considered transformation of the volume with the excitation energy and so does not bear direct information on the characteristics of the phase transition. Conversely, partial energy fluctuations are demonstrated to be a direct measure of the equation of state. Since the heat capacity has a negative branch in the phase transition region, the presence of abnormally large kinetic energy fluctuations is a signal of the liquid-gas phase transition. |
|
|
|
|
|
|
|
|
|
|
|
| 1 : | GANIL - Grand Accélérateur National d'Ions Lourds |
|
|
| 2 : | LPCC - Laboratoire de Physique Corpusculaire de Caen |
|
|
|
|
|
|
|
|
|
| Physique théorique |
|
|
|
|
| Thème(s) | : | Physique/Physique Nucléaire Théorique |
| in2p3-00311563, version 1 | |
| http://hal.in2p3.fr/in2p3-00311563 | |
| oai:hal.in2p3.fr:in2p3-00311563 | |
| Contributeur : Michel Lion | |
| Soumis le : Mardi 19 Août 2008, 10:48:54 | |
| Dernière modification le : Mardi 19 Août 2008, 13:23:02 | |
