Details
| Original language | English |
|---|---|
| Article number | 43001 |
| Journal | Europhysics Letters (EPL) |
| Volume | 84 |
| Issue number | 4 |
| Publication status | Published - 10 Nov 2008 |
| Externally published | Yes |
Abstract
Ionization in a strong laser field is a prime example of non-perturbative, correlated electron dynamics. Simulating such processes on a first-principles basis is a major theoretical challenge. We demonstrate that time-dependent density functional theory (TDDFT) on the basis of a newly developed functional for the correlation potential incorporates the relevant electron interaction effects. The central idea of our approach is to exploit information about exact ground-state correlation in approximate time-dependent calculations. The new functional provides an accurate description of the paradigm problem of the double ionization of the Helium atom, showing that TDDFT is a viable tool for strong-field calculations.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Europhysics Letters (EPL), Vol. 84, No. 4, 43001, 10.11.2008.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Strong-field ionization in time-dependent density functional theory
AU - De Wijn, A. S.
AU - Lein, Manfred
AU - Kümmel, S.
N1 - Copyright: Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2008/11/10
Y1 - 2008/11/10
N2 - Ionization in a strong laser field is a prime example of non-perturbative, correlated electron dynamics. Simulating such processes on a first-principles basis is a major theoretical challenge. We demonstrate that time-dependent density functional theory (TDDFT) on the basis of a newly developed functional for the correlation potential incorporates the relevant electron interaction effects. The central idea of our approach is to exploit information about exact ground-state correlation in approximate time-dependent calculations. The new functional provides an accurate description of the paradigm problem of the double ionization of the Helium atom, showing that TDDFT is a viable tool for strong-field calculations.
AB - Ionization in a strong laser field is a prime example of non-perturbative, correlated electron dynamics. Simulating such processes on a first-principles basis is a major theoretical challenge. We demonstrate that time-dependent density functional theory (TDDFT) on the basis of a newly developed functional for the correlation potential incorporates the relevant electron interaction effects. The central idea of our approach is to exploit information about exact ground-state correlation in approximate time-dependent calculations. The new functional provides an accurate description of the paradigm problem of the double ionization of the Helium atom, showing that TDDFT is a viable tool for strong-field calculations.
UR - http://www.scopus.com/inward/record.url?scp=79051469726&partnerID=8YFLogxK
U2 - 10.1209/0295-5075/84/43001
DO - 10.1209/0295-5075/84/43001
M3 - Article
AN - SCOPUS:79051469726
VL - 84
JO - Europhysics Letters (EPL)
JF - Europhysics Letters (EPL)
SN - 0295-5075
IS - 4
M1 - 43001
ER -