The Krieger-Li-Iafrate approximation provides a local exchange potential for density functional theory calculations.

the verdict

SUPPORTED

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4 sources for · 0 against

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Is it true that the Krieger-Li-Iafrate approximation provides a local exchange potential for density functional theory calculations?

Yes. The retrieved literature consistently confirms that the Krieger-Li-Iafrate (KLI) approximation serves as a standard local exchange potential method in density functional theory calculations.

Verdict: SUPPORTED · 4 sources for, 0 against · Last checked 6 Aug 2026

The analysis

The claim states that the Krieger-Li-Iafrate approximation provides a local exchange potential for density functional theory calculations. Multiple papers explicitly reference the KLI approximation in the context of optimized effective potentials and exchange-correlation functionals within density functional theory. There are no papers contradicting this claim.

Evidence for · 4

Accurate and efficient approximation to the optimized effective potential for exchange.

2013

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IG, R., AA, K., & VN, S. (2013). Accurate and efficient approximation to the optimized effective potential for exchange.. doi.org. https://doi.org/10.1103/physrevlett.111.013001

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More for · 3

Configuration interaction singles based on the real-space numerical grid method: Kohn-Sham versus Hartree-Fock orbitals.

2015

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J, K., J, K., K, H., S, C., SY, H., & W, Y. K. (2015). Configuration interaction singles based on the real-space numerical grid method: Kohn-Sham versus Hartree-Fock orbitals.. doi.org. https://doi.org/10.1039/c5cp00352k

Extension of the KLI approximation toward the exact optimized effective potential

2013

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Iafrate, G. J. & Krieger, J. B. (2013). Extension of the KLI approximation toward the exact optimized effective potential. doi.org. https://doi.org/10.1063/1.4792365

Optimized effective potential method for polymers

1999

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Sule, P., Kurth, S., & Doren, V. V. (1999). Optimized effective potential method for polymers. doi.org. https://doi.org/10.1063/1.481334

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Is it true that Higher-order exchange terms improve the accuracy of density functional approximations? SUPPORTED related question, same topic
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first checked06 Aug 2026

judged → SUPPORTED · 8406 Aug 2026

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