Computing Counterion Densities at Intermediate Coupling

Preprint

20 January 2005

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0501498

Abstract

By decomposing the Coulomb interaction into a long distance component appropriate for mean-field theory, and a nonmean-field short distance component, we compute the counterion density near a charged surface for all values of the counterion coupling parameter. A modified strong-coupling expansion that is manifestly finite at all coupling strengths is used to treat the short distance component. We find a nonperturbative correction related to the lateral counterion correlations that modifies the density at intermediate coupling.

Keywords

DENSITIES AT INTERMEDIATE
COMPUTE THE COUNTERION
DENSITY NEAR A CHARGED
INTERMEDIATE COUPLING
DISTANCE COMPONENT
COUNTERION DENSITY
CHARGED SURFACE
COULOMB

All Related Versions

Version 1, 2005-01-20, ArXiv
Published version: Physical Review E, 73 (4), 041512.

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