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arXiv · 1410.6750

Density Functional Model for Nondynamic and Strong Correlation

Jing Kong·Emil Proynov
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Abstract

A single-term density functional model for nondynamic and strong correlation is presented, based on single-determinant Kohn-Sham density functional theory. It is derived from modeling the adiabatic connection and contains only two nonlinear empirical parameters. Preliminary tests show that the model recovers majority of nondynamic correlation during a molecular dissociation and at the same time performs reasonably for atomization energies. It demonstrates the feasibility of developing DFT functionals for nondynamic and strong correlation within the single-determinant KS scheme.

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Jing Kong, Emil Proynov. 2014-10-24. Density Functional Model for Nondynamic and Strong Correlation. https://doi.org/10.1021/acs.jctc.5b00801

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