Schlagheck, P. and Buchleitner, A. (2003) Nondispersive two-electron wave packets in driven helium. EUROPEAN PHYSICAL JOURNAL D, 22 (3). pp. 401-415. ISSN 1434-6060
Full text not available from this repository.Abstract
We provide a detailed quantum treatment of the spectral characteristics and of the dynamics of nondispersive two-electron wave packets along the periodically driven, collinear frozen planet configuration of helium. These highly correlated, long-lived wave packets arise as a quantum manifestation of regular islands in a mixed classical phase space, which are induced by nonlinear resonances between the external driving and the unperturbed dynamics of the frozen-planet configuration. Particular emphasis is given to the dependence of the ionization rates of the wave packet states on the driving field parameters and on the quantum mechanical phase space resolution, preceded by a comparison of 1D and 3D life times of the unperturbed frozen planet. Furthermore, we study the effect of a superimposed static electric field component, which, on the grounds of classical considerations, is expected to stabilize the real 3D dynamics against large (and possibly ionizing) deviations from collinearity.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EXCITED HYDROGEN-ATOMS; STRONG LASER FIELD; MICROWAVE IONIZATION; QUANTUM-MECHANICS; 2-ELECTRON ATOMS; STATES; RESONANCE; DYNAMICS; SYSTEMS; CONFIGURATIONS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 24 Aug 2021 10:49 |
| Last Modified: | 24 Aug 2021 10:49 |
| URI: | https://pred.uni-regensburg.de/id/eprint/39231 |
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