An Additive Long-range Potential to Correct for the Charge-transfer Failure of Time-dependent Density Functional Theory
Document Type
Article
Publication Title
Zeitschrift für Physikalische Chemie
Department
Chemistry
ISSN
0942-9352
Volume
224
Issue
3--4
DOI
10.1524/zpch.2010.6107
First Page
311
Last Page
324
Publication Date
January 2010
Abstract
Time-dependent density functional theory is one of the most widely used methods for the calculation of excited states of large molecules. However, it exhibits substantial problems with charge-transfer excited states when conventional exchange-correlation functionals are employed. Here, we introduce an additive long-range potential that can, in principle, be directly employed with any existing local, GGA or hybrid-functional, without re-fitting of the original functionals. The additive potential shifts the excitation energies to higher values and corrects for the wrong asymptotic behavior of their potential energy surfaces with respect to charge-separating coordinates. First examples of its successful application are shown.
Recommended Citation
Dreuw, A.,
Plötner, J.,
Wormit, M.,
Head-Gordon, M.,
&
Dutoi, A. D.
(2010).
An Additive Long-range Potential to Correct for the Charge-transfer Failure of Time-dependent Density Functional Theory.
Zeitschrift für Physikalische Chemie, 224(3--4), 311–324.
DOI: 10.1524/zpch.2010.6107
https://scholarlycommons.pacific.edu/cop-facarticles/209
