43 citations · 68 across the 3 of their papers we have counts for
3 papers
cond-mat.other2004★ 43 cited
Excitonic effects in time-dependent density-functional theory: An analytically solvable model
R. Stubner, I. V. Tokatly, O. Pankratov
We investigate the description of excitonic effects within time-dependent density-functional theory (TDDFT). The exchange-correlation kernel f_xc introduced in TDDFT allows a clear…
cond-mat2001★ 24 cited
Many-body Diagrammatic Expansion for the Exchange-Correlation Kernel in Time-Dependent Density Functional Theory
I. V. Tokatly, R. Stubner, O. Pankratov
A diagrammatic expansion for the dynamic exchange-correlation kernel f_xc of time dependent density functional theory is formulated. It is shown that f_xc has no singularities at K…
cond-mat2000★ 1 cited
Generalization of k.p theory for periodic perturbations
R. Stubner, R. Winkler, O. Pankratov
We extend standard k.p theory to take into account periodic perturbations which are rapidly oscillating with a wavelength of a few lattice constants. Our general formalism allows u…