Molecular density functional theory of water including density–polarization coupling

Abstract : We present a three-dimensional molecular density functional theory of water derived from first-principles that relies on the particle’s density and multipolar polarization density and includes the density–polarization coupling. This brings two main benefits: (i) scalar density and vectorial multipolar polarization density fields are much more tractable and give more physical insight than the full position and orientation densities, and (ii) it includes the full density–polarization coupling of water, that is known to be non-vanishing but has never been taken into account. Furthermore, the theory requires only the partial charge distribution of a water molecule and three measurable bulk properties, namely the structure factor and the Fourier components of the longitudinal and transverse dielectric susceptibilities.
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Contributor : Maximilien Levesque <>
Submitted on : Thursday, April 28, 2016 - 2:04:01 PM
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Guillaume Jeanmairet, Nicolas Lévy, Maximilien Levesque, Daniel Borgis. Molecular density functional theory of water including density–polarization coupling. Journal of Physics: Condensed Matter, IOP Publishing, 2016, 28 (24), ⟨10.1088/0953-8984/28/24/244005⟩. ⟨hal-01308758⟩



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