Relating Binding Energy and Scattering Length of Cold Hybrid Ion-Atom Systems

0556555 - ÚOCHB 2023 RIV DE eng J - Článek v odborném periodiku
Augustovičová, L. D. - Špirko, Vladimír
Relating Binding Energy and Scattering Length of Cold Hybrid Ion-Atom Systems.
Annalen der Physik. Roč. 534, č. 4 (2022), č. článku 2100429. ISSN 0003-3804. E-ISSN 1521-3889
Institucionální podpora: RVO:61388963
Klíčová slova: binding energy * interaction potential * spectral properties * scattering length
Obor OECD: Physical chemistry
Impakt faktor: 2.4, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1002/andp.202100429

The universal properties of the loosely bound vibrational states of cold hybrid ion-atom systems are probed using a “scaling“ approach. This approach is based on the use of numerical relations (a versus D-last) between the binding energy (D-last) of the highest vibrational state and the s-wave scattering length (a) obtained by solving the appropriate Schrodinger equations with scaled interaction potentials. The actual probing is accomplished by evaluating the “a versus D-last“ relations for (6)Li2+ and (7)Li2+ in the X2 sigma g+ ground electronic state using a set of ab initio potential energy curves from the literature. Although these curves provide strongly differing values of a and D-last, the corresponding “a versus D-last“ relations closely coincide, thus enabling an accurate determination of scattering lengths directly from experimental binding energies and vice versa.
Trvalý link: http://hdl.handle.net/11104/0331093