Current-Dependent Exchange-Correlation Potential for Dynamical Linear Response Theory
- 2 September 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 77 (10) , 2037-2040
- https://doi.org/10.1103/physrevlett.77.2037
Abstract
The frequency-dependent exchange-correlation potential, which appears in the usual Kohn-Sham formulation of a time-dependent linear response problem, is a strongly nonlocal functional of the density, so that a consistent local density approximation generally does not exist. This problem can be avoided by choosing the current density as the basic variable in a generalized Kohn-Sham theory. This theory admits a local approximation which, for fixed frequency, is exact in the limit of slowly varying densities and perturbing potentials.Keywords
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This publication has 12 references indexed in Scilit:
- Plasmon dispersion and dynamic exchange - correlation potentials from two-pair excitations in degenerate plasmasJournal of Physics: Condensed Matter, 1996
- Center of Mass and Relative Motion in Time Dependent Density Functional TheoryPhysical Review Letters, 1995
- Magneto-optical absorption by electrons in the presence of parabolic confinement potentialsPhysical Review B, 1991
- Time-Dependent Density-Functional TheoryPublished by Elsevier ,1990
- Charged-particle interaction with liquids: Ripplon excitationsPhysical Review B, 1989
- Density-Functional Theory for Time-Dependent SystemsPhysical Review Letters, 1984
- Resonant two-electron excitation in copperPhysical Review B, 1981
- Resonant Photoemission in Barium and CeriumPhysical Review Letters, 1980
- Self-Consistent Equations Including Exchange and Correlation EffectsPhysical Review B, 1965
- Cyclotron Resonance and de Haas-van Alphen Oscillations of an Interacting Electron GasPhysical Review B, 1961