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Updated: May 19, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
Published on: April 12, 2019
A computationally efficacious free-energy functional for studies of inhomogeneous liquid water
Ravishankar Sundararaman1, Kendra Letchworth-Weaver, T A Arias
1Department of Physics, Cornell University, Ithaca, New York 14853, USA. rs596@cornell.edu
Abstract:
We present an accurate equation of state for water based on a simple microscopic Hamiltonian, with only four parameters that are well-constrained by bulk experimental data. With one additional parameter for the range of interaction, this model yields a computationally efficient free-energy functional for inhomogeneous water, which captures short-ranged correlations, cavitation energies, and, with suitable long-range corrections, the nonlinear dielectric response of water, making it an excellent candidate for the studies of mesoscale water and for use in ab initio solvation methods.
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