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Cited by 2,107

The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.

Proof that∂E∂ni=εin density-functional theory

Janak, J. F.·1978·Physical Review B

Abstract

It is shown that the variation of the total energy, as constructed in density-functional theory, with respect to an orbital occupation is equal to the eigenvalue of that orbital, independent of the detailed form of the exchange-correlation functional. This leads to a rigorous connection between the ground-state energies of $N$- and ($N+1$)-particle systems, which is useful in the calculation of certain excitation energies.

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Metadata

Authors
Janak, J. F.
Venue
Physical Review B
Published
1978-12-15
Volume
18
Issue
12
Pages
7165-7168
ISSN
0163-1829 (ISSN-L)
OpenAlex
W2329717581
Cited by
2,107
References
13
FWCI
3.49
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Proof that∂E∂ni=εin density-functional theory. https://app.cochat.ai/papers/10.1103/physrevb.18.7165
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Janak, J. F. (1978). Proof that∂E∂ni=εin density-functional theory. Physical Review B. https://doi.org/10.1103/physrevb.18.7165

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