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Field theory fo charged fluids and colloids

Roland R. Netz·Henri Orland
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Abstract

A systematic field theory is presented for charged systems. The one-loop level corresponds to the classical Debye-Hückel (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.

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Roland R. Netz, Henri Orland. 1998-07-02. Field theory fo charged fluids and colloids. https://doi.org/10.1209/epl%2Fi1999-00228-6

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