Current-Dependent Exchange-Correlation Potential for Dynamical Linear Response Theory

dc.contributor.author	Vignale, Giovanni, 1957-	eng
dc.contributor.author	Kohn, Walter	eng
dc.date.issued	1996	eng
dc.description	URL:http://link.aps.org/doi/10.1103/PhysRevLett.77.2037 DOI:10.1103/PhysRevLett.77.2037	eng
dc.description.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.	eng
dc.description.sponsorship	We acknowledge support from NSF Grants No. DMR- 9403908 and No. DMR-9308011.	eng
dc.identifier.citation	Phys. Rev. Lett. 77, 2037-2040 (1996)	eng
dc.identifier.issn	0031-9007	eng
dc.identifier.uri	http://hdl.handle.net/10355/7947	eng
dc.language	English	eng
dc.publisher	American Physical Society	eng
dc.relation.ispartofcollection	University of Missouri--Columbia. College of Arts and Sciences. Department of Physics and Astronomy. Physics and Astronomy publications	eng
dc.subject	frequency-dependent exchange-correlation potential	eng
dc.subject.lcsh	Density	eng
dc.subject.lcsh	Approximation theory	eng
dc.title	Current-Dependent Exchange-Correlation Potential for Dynamical Linear Response Theory	eng
dc.type	Article	eng

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