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Thermodynamics and structure of a two-dimensional electrolyte by integral equation theory.


ABSTRACT: Monte Carlo simulations and integral equation theory were used to predict the thermodynamics and structure of a two-dimensional Coulomb fluid. We checked the possibility that integral equations reproduce Kosterlitz-Thouless and vapor-liquid phase transitions of the electrolyte and critical points. Integral equation theory results were compared to Monte Carlo data and the correctness of selected closure relations was assessed. Among selected closures hypernetted-chain approximation results matched computer simulation data best, but these equations unfortunately break down at temperatures well above the Kosterlitz-Thouless transition. The Kovalenko-Hirata closure produces results even at very low temperatures and densities, but no sign of phase transition was detected.

SUBMITTER: Aupic J 

PROVIDER: S-EPMC4032415 | biostudies-other | 2014 May

REPOSITORIES: biostudies-other

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