Ionic fluids: charge and density correlations near gas-liquid criticality
Statistical Mechanics
2016-08-31 v2
Abstract
The correlation functions of an ionic fluid with charge and size asymmetry are studied within the framework of the random phase approximation. The results obtained for the charge-charge correlation function demonstrate that the second-moment Stillinger-Lovett (SL) rule is satisfied away from the gas-liquid critical point (CP) but not, in general, at the CP. However in the special case of a model without size assymetry the SL rules are satisfied even at the CP. The expressions for the density-density and charge-density correlation functions valid far and close to the CP are obtained explicitely.
Keywords
Cite
@article{arxiv.cond-mat/0505402,
title = {Ionic fluids: charge and density correlations near gas-liquid criticality},
author = {Oksana Patsahan and Ihor Mryglod and Jean-Michel Caillol},
journal= {arXiv preprint arXiv:cond-mat/0505402},
year = {2016}
}