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Journal Articles Physical Review E Year : 2016

Free-energy functional of the Debye-Hückel model of simple fluids

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Abstract

The Debye-Hückel approximation to the free energy of a simple fluid is written as a functional of the pair correlation function. This functional can be seen as the Debye-Hückel equivalent to the functional derived in the hypernetted chain framework by Morita and Hiroike, as well as by Lado. It allows one to obtain the Debye-Hückel integral equation through a minimization with respect to the pair correlation function, leads to the correct form of the internal energy, and fulfills the virial theorem.

Dates and versions

cea-01427234 , version 1 (05-01-2017)

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Cite

R. Piron, T. Blenski. Free-energy functional of the Debye-Hückel model of simple fluids. Physical Review E , 2016, 94, pp.062128. ⟨10.1103/PhysRevE.94.062128⟩. ⟨cea-01427234⟩
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