Bound States of Dipolr Molecules Studied with the Berggren Expnsiion Method

Journal Article · Tue Jan 01 04:00:00 EST 2013 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.87.042515· OSTI ID:1091689

Fossez, K. ^[1]; Michel, N. ^[2]; Nazarewicz, Witold ^[3]; Ploszajczak, M. ^[1]

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1. Grand Accelerateur National d'Ions Lourds (GANIL)
2. University of Tennessee (UTK) and Oak Ridge National Laboratory (ORNL)
3. UTK/ORNL/University of Warsaw

Bound states of dipole-bound anions are studied by using a nonadiabatic pseudopotential method and the Berggren expansion involving bound states, decaying resonant states, and nonresonant scattering continuum. The method is benchmarked by using the traditional technique of direct integration of coupled-channel equations. A good agreement between the two methods has been found for well-bound states. For weakly bound subthreshold states with binding energies comparable to rotational energies of the anion, the direct integration approach breaks down and the Berggren expansion method becomes the tool of choice.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1091689
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 4 Vol. 87; ISSN 1050-2947
• Country of Publication: United States
• Language: English