Local density-functional theory of frequency-dependent linear response
- 23 December 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 55 (26), 2850-2852
- https://doi.org/10.1103/physrevlett.55.2850
Abstract
The linear density response of inhomogeneous electronic systems is discussed from a density-functional point of view. We derive a local density approximation for the frequency-dependent exchange-correlation potential which is compared with the ‘‘adiabatic’’ expression used in former work.Keywords
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