Friday, August 31, 2012

1208.6209 (Vincent Démery et al.)

Electrostatic interactions mediated by polarizable counterions: weak and
strong coupling limits
   [PDF]

Vincent Démery, David S. Dean, Rudolf Podgornik
We investigate the statistical mechanics of an inhomogeneous Coulomb fluid composed of charged particles with static polarizability. We derive the weak- and the strong-coupling approximations and evaluate the partition function in a planar dielectric slab geometry with charged boundaries. We investigate the density profiles and the disjoining pressure for both approximations. Comparison to the case of non-polarizable counterions shows that polarizability brings important differences in the counterion density distribution as well as the counterion mediated electrostatic interactions between charged dielectric interfaces.
View original: http://arxiv.org/abs/1208.6209

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