Polarizibilities as a test of localized approximations to the self-interaction correction

Details Polarizibilities as a test of localized approximations to the self-interaction correction Polarizibilities as a test of localized approximations to the self-interaction correction

2009-01-14

arxiv.org/abs/0901.2011v2

Chem. Phys.Lett. 479 (2009) 300

Physics

Quantum Physics

17 pages, 4 figures, 49 references

Scientific paper

We present applications of the recently introduced ``Generalized SIC-Slater'' scheme which provides a simple Self-Interaction Correction approximation in the framework of the Optimized Effective Potential. We focus on the computation of static polarizabilities which are known to constitute stringent tests for Density Functional Theory. We apply the new method to model H chains, but also to more realistic systems such as C4 (organic) chains, and less symmetrical systems such as a Na5 (metallic) cluster. Comparison is made with other SIC schemes, especially with the standard SIC-Slater one.

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