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Long-range interactions between two 2s excited hydrogen atoms

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons60804

Saenz,  Alejandro
Theory, Max Planck Institute of Quantum Optics, Max Planck Society;

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Zitation

Jonsell, S., Saenz, A., Froelich, P., Forrey, R. C., Côté, R., & Dalgarno, A. (2002). Long-range interactions between two 2s excited hydrogen atoms. Physical Review A, 65(4): 042501. 042501. Retrieved from http://link.aps.org/abstract/PRA/v65/e042501.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-C22B-D
Zusammenfassung
The doubly excited 1Σg+ and 3Σu+ states of the H2 molecule converging to the H(n=2)+H(n'=2) limit have been calculated using explicitly correlated basis functions, giving accurate results out to a nuclear separation sufficiently large to apply asymptotic expansions for the potential energy. The autoionization widths have been obtained using the complex-scaling method. For nuclear separations larger than 22 a.u., asymptotic expressions for the interaction energies have been obtained from perturbation theory.