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Mixed quantum-classical approach to multiphoton dissociation of the hydrogen molecular ion

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Fischer,  M.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Handt,  J.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Rost,  J. M.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Fischer, M., Grossmann, F., Schmidt, R., Handt, J., Krause, S. M., & Rost, J. M. (2011). Mixed quantum-classical approach to multiphoton dissociation of the hydrogen molecular ion. New Journal of Physics, 13: 053019.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0029-8CC5-E
Abstract
We present a mixed quantum-classical propagation method for the time-dependent dynamics of nuclear as well as electronic degrees of freedom for para-H(2)(+) exposed to short intense laser pulses of 800 nm wavelength. Depending on the initial vibrational state, the angular distributions of photofragments show characteristic shapes in very good agreement with our full-dimensional nuclear dynamics quantum calculations. The results can be understood in terms of two-dimensional adiabatic Floquet surfaces, which depend on the internuclear separation and rotation angle, demonstrating that adiabatic light-dressed surfaces are also a useful concept for full-dimensional nuclear dynamics. Using kinetic energy release spectra, we are also able to extract the contributions of different photon channels in the quantum-classical case.