Computing counterion densities at intermediate coupling

Christian D. Santangelo

doi:10.1103/PhysRevE.73.041512

Computing counterion densities at intermediate coupling

Christian D. Santangelo

Research output: Contribution to journal › Article › peer-review

72 Scopus citations

Abstract

By decomposing the Coulomb interaction into a long-distance component appropriate for mean-field theory, and a non-mean-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.

Original language	English (US)
Article number	041512
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	73
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevE.73.041512
State	Published - 2006
Externally published	Yes

ASJC Scopus subject areas

Statistical and Nonlinear Physics
Statistics and Probability
Condensed Matter Physics

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