Density-functional exchange identity from coordinate scaling
- 1 May 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 53 (5) , 3140-3142
- https://doi.org/10.1103/physreva.53.3140
Abstract
A density-functional exchange identity is derived in a very simple manner through coordinate scaling for the external potential within the coupling-constant approach. It is observed that this identity may be expressed as a recursion relation which is especially useful for testing approximations to the exchange functional, and to its corresponding exchange potential, as part of a full density-functional calculation involving correlation as well as exchange. © 1996 The American Physical Society.Keywords
This publication has 14 references indexed in Scilit:
- Systematic approximations to the optimized effective potential: Application to orbital-density-functional theoryPhysical Review A, 1992
- Construction and application of an accurate local spin-polarized Kohn-Sham potential with integer discontinuity: Exchange-only theoryPhysical Review A, 1992
- Hellmann-Feynman, virial, and scaling requisites for the exact universal density functionals. Shape of the correlation potential and diamagnetic susceptibility for atomsPhysical Review A, 1985
- Density-determined orthonormal orbital approach to atomic energy functionalsa)The Journal of Chemical Physics, 1985
- Exact differential equation for the density and ionization energy of a many-particle systemPhysical Review A, 1984
- Exchange-correlation energy of a metallic surface: Wave-vector analysisPhysical Review B, 1977
- Optimized effective atomic central potentialPhysical Review A, 1976
- Exchange and correlation in atoms, molecules, and solids by the spin-density-functional formalismPhysical Review B, 1976
- The exchange-correlation energy of a metallic surfaceSolid State Communications, 1975
- A Variational Approach to the Unipotential Many-Electron ProblemPhysical Review B, 1953