Multiconfiguration time-dependent Hartree approach for electron-nuclear correlation in strong laser fields

Chirag Jhala and Manfred Lein
Phys. Rev. A 81, 063421 – Published 24 June 2010

Abstract

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.

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  • Received 2 April 2010

DOI:https://doi.org/10.1103/PhysRevA.81.063421

©2010 American Physical Society

Authors & Affiliations

Chirag Jhala* and Manfred Lein

  • Institut für Theoretische Physik and Centre for Quantum Engineering and Space-Time Research (QUEST), Leibniz Universität Hannover, Appelstraße 2, D-30167 Hannover, Germany

  • *Chirag.Jhala@itp.uni-hannover.de

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Issue

Vol. 81, Iss. 6 — June 2010

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