An exact but linear and Poisson—Boltzmann-like theory for electrolytes and colloid dispersions in the primitive model
✍ Scribed by Roland Kjellander; D.John Mitchell
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 630 KB
- Volume
- 200
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
It is shown that the exact theory for electrolyte solutions and colloid dispersions in the primitive model can be reformulated in terms of quasiparticles, constituting "dressed" ions or colloid particles, where parts of the ion cloud around each bare particle are included in the quasiparticle. The resulting exact theory for the dressed particles is virtually identical to the linear Poisson-Boltzmann (PB) theory, where the bare particle charges in the PB theory are replaced by the internal charge distributions of the quasiparticles. Nonlinearities and many-body correlations only contribute to the internal charge distributions of the quasiparticles. The long-range asymptotic behaviour of the pair correlations is analyzed.