Numerical Analysis of Finite Dimensional Approximations of Kohn-Sham Models

preprint2011arXivOpen access

Abstract

In this paper, we study finite dimensional approximations of Kohn-Sham models, which are widely used in electronic structure calculations. We prove the convergence of the finite dimensional approximations and derive the a priori error estimates for ground state energies and solutions. We also provide numerical simulations for several molecular systems that support our theory.

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