Double-Pole Approximation in Time-Dependent Density Functional Theory
材料科学
2009-11-11 v1
摘要
A simple approximate solution to the linear response equations of time-dependent density functional theory (TDDFT) is given. This extends the single-pole approximation (SPA) to two strongly-coupled poles. The analysis provides both an illustration of how TDDFT works when strong exchange-correlation effects are present and insight into such corrections. For example, interaction can cause a transition to vanish entirely from the optical spectrum.
引用
@article{arxiv.cond-mat/0510396,
title = {Double-Pole Approximation in Time-Dependent Density Functional Theory},
author = {H. Appel and E. K. U. Gross and K. Burke},
journal= {arXiv preprint arXiv:cond-mat/0510396},
year = {2009}
}
备注
7 pages, 11 figures