Physics – Condensed Matter
Scientific paper
1996-05-08
Physics
Condensed Matter
10 pages
Scientific paper
10.1103/PhysRevLett.77.2037
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.
Kohn Walter
Vignale Giovanni
No associations
LandOfFree
Current-dependent exchange-correlation potential for dynamical linear response theory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Current-dependent exchange-correlation potential for dynamical linear response theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current-dependent exchange-correlation potential for dynamical linear response theory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-80570