| Issue |
Europhys. Lett.
Volume 50, Number 4, May II 2000
|
|
|---|---|---|
| Page(s) | 434 - 440 | |
| Section | Nuclear physics | |
| DOI | https://doi.org/10.1209/epl/i2000-00288-6 | |
| Published online | 01 September 2002 | |
Abnormal kinetic-energy fluctuations and critical behaviors in the microcanonical lattice gas model
1
LPC Caen
(IN2P3-CNRS/ISMRA et Université) - F-14050 Caen cédex, France
2
GANIL (DSM-CEA/IN2P3-CNRS) - B.P.5027, F-14021 Caen cédex, France
Received:
4
October
1999
Accepted:
6
March
2000
In this paper we present a microcanonical lattice gas model with a fluctuating volume. In the first-order liquid-gas phase transition region thermodynamical anomalies such as a back-bending in the caloric curve and a negative heat capacity are observed. This phenomenon induces abnormal kinetic-energy fluctuations and is associated with a critical fragment size distribution. The relevance of these findings for the experimental detection of a liquid-gas phase transition in finite systems is discussed.
PACS: 24.10.Pa – Thermal and statistical models / 64.60.Fr – Equilibrium properties near critical points, critical exponents / 64.70.-p – Specific phase transitions
© EDP Sciences, 2000
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.