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The force matching approach to multiscale simulations: merits, shortcomings, and future perspectives
Masia, Marco; Guàrdia Manuel, Elvira; Nicolini, Paolo
Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear; Universitat Politècnica de Catalunya. SIMCON - Grup de Recerca de Simulació per Ordinador en Matèria Condensada
Among the various approaches to multiscale simulations, in recent years, force matching has been known for a quick growth. The method is based on a least-square fit of reference properties obtained from simulations at a certain scale, to parameterize the force field for coarser-grained scale simulations. Its advantage with respect to conventional schemes used for parameterizing force fields, lies in that only physically accessible configurations are sampled, and that the number of reference data per configuration is large. In this perspective article, we discuss some recent findings on the tailoring of the objective function, on the choice of the empirical potential, and on the way to improve the quality of the reference calculations. We present pros and cons of the algorithm, and we propose a road map to future developments. (C) 2014 Wiley Periodicals, Inc.
Àrees temàtiques de la UPC::Física
Computer simulation
Molecular dynamics
force matching
multiscale simulations
force field parameterization
Simulació per ordinador
Dinàmica molecular
Attribution-NonCommercial-NoDerivs 3.0 Spain

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