Zusammenfassung: | |
The multiconfiguration time-dependent Hartree approach is applied to study the electron-nuclear correlation in the dynamics of molecules subject to strong external laser fields, using the example of a model hydrogen molecular ion. The ground state of the system is well described by as few as two single-particle functions per degree of freedom. A significantly larger but moderate number of configurations is required to predict laser-induced fragmentation probabilities and high-order harmonic generation spectra accurately, showing that the correlation between electronic and nuclear degree of freedom is strongly increased by the presence of the laser field. © 2010 The American Physical Society.
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Lizenzbestimmungen: | Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. |
Publikationstyp: | Article |
Publikationsstatus: | publishedVersion |
Erstveröffentlichung: | 2010 |
Schlagwörter (englisch): | Degree of freedom, External laser fields, Hartree approach, High order harmonic generation, Hydrogen molecular ion, Laser fields, Laser induced, Multiconfiguration, Nuclear degree of freedom, Single-particle functions, Strong laser field, Time-dependent, Degrees of freedom (mechanics), High energy physics, Laser optics |
Fachliche Zuordnung (DDC): | 530 | Physik |
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