"Centrifugal fragmentation" in the photodissociation of H2+ in intense laser fields

Details "Centrifugal fragmentation" in the photodissociation of H2+ in intense laser fields "Centrifugal fragmentation" in the photodissociation of H2+ in intense laser fields

2011-08-05

arxiv.org/abs/1108.1311v1

Physics

Atomic and Molecular Clusters

5 pages, 4 figures

Scientific paper

By means of quantum-dynamical and classical trajectory calculations of H2+ photodissociation in strong laser fields, it is shown that for certain combinations of pulse durations and intensities the rotational dynamics can lead to centrifugal fragmentation. In that case, the photofragments exhibit characteristic angular distributions. The classical calculations provide a transparent physical picture of this mechanism which is also very well established in collisions between atomic nuclei or liquid droplets: non-rotating systems are stable, whereas rotating systems fragment due to the decrease of the fragmentation barrier with increasing angular momentum.

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