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Third-party-funded project

Title:
Theoretical description of coupled electronic and nuclear dynamics beyond adiabatic approximations

Project management at the University of Würzburg:

• Professor Volker Engel ,Tel: 0931-888-6367,Fax: 0931-888-6362,Mail: voen@phys-chemie.uni-wuerzburg.de
• Professor E. K.U. Gross ,Tel: 0931-888-5724,Fax: 0931-888-5141,Mail: gross@physik.uni-wuerzburg.de

Participating scientists:

• Doktor Manfred Lein ,Tel: 0931-888-6380,Fax: 0931-888-6362

Abstract:
The dynamics of electrons and nuclei in ultra-intense laserfields exhibits
many new physical phenomena. Using a theoretical description which treats
the electronic as well as the nuclear degrees of freedom quantum mechanical
ly, processes like multiple ionization or higher-harmonics generation could be characterized.

Key words:
    quantum dynamics
    non-adiabatic effects
    double ionization
    high harmonics

Projekt period: from 05.1999 to 05.2001

Funding institution:
DFG ( EN241/6-2 ) ,Granting date: 03.05.1999

Preceding project:
EN241/6-1

Publications:

• M. Lein, E.K.U. Gross, V. Engel. (2000). On the mechanism of strong field double ionization in the helium atom. Journal of Physics B, 33, 433, (scientific article)
• M. Lein, M. Erdmann, V. Engel. (2000). Characterization of nuclear wave packets describing molecular photodissociation. Journal of Chemical Physics, 113, 3609, (scientific article)
• M. Lein, E.K.U. Gross, V. Engel. (2000). Intense-field double ionization of helium: identifying the mechanism. Physical Review Letters, 85, 4707, (scientific article)
• C. Trump, H. Rottke, M. Wittmann, G. Korn, W. Sandner, M. Lein, V. Engel. (2000). Pulse-width and isotope effects in femtosecond-pulse strong-field dissociation. Physical Review A, 62, 063402, (scientific article)
• M. Lein, V. Engel, E.K.U. Gross. (2001). Phase-space analysis of double ionization. Optics Express, 8, 411, (scientific article)
• M. Lein, V. Engel, E.K.U. Gross. (2001). Discrete peaks in above-threshold double-ionization spectra. Physical Review A, 64, 023406, (scientific article)
• T. Kreibich, M. Lein, V. Engel, E.K.U. Gross. (2001). Even-harmonic generation due to beyond-Born-Oppenheimer dynamics. Physical Review Letters, 87, 103901, (scientific article)
• M. Lein, E.K.U. Gross, V. Engel. (2002). The effect of the electron-electron interaction in above-threshold double ionization. Laser Physics, 12, 487, (scientific article)