Field theory fo charged fluids and colloids
Statistical Mechanics
2009-10-31 v2
Abstract
A systematic field theory is presented for charged systems. The one-loop level corresponds to the classical Debye-H\"uckel (DH) theory, and exhibits the full hierarchy of multi-body correlations determined by pair-distribution functions given by the screened DH potential. Higher-loop corrections can lead to attractive pair interactions between colloids in asymmetric ionic environments. The free energy follows as a loop-wise expansion in half-integer powers of the density; the resulting two-phase demixing region shows pronounced deviations from DH theory for strongly charged colloids.
Cite
@article{arxiv.cond-mat/9807009,
title = {Field theory fo charged fluids and colloids},
author = {Roland R. Netz and Henri Orland},
journal= {arXiv preprint arXiv:cond-mat/9807009},
year = {2009}
}
Comments
4 pages, 2 ps figs; new version corrects some minor typos