Extremal properties of the Harris energy functional
- 12 March 1990
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 2 (10) , 2479-2486
- https://doi.org/10.1088/0953-8984/2/10/018
Abstract
The author shows that the energy functional defined by Harris has a local maximum at the exact ground-state density of an electronic system provided the dielectric screening matrix of the system has eigenvalues that are all greater than unity.Keywords
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