Rotational and rotationless states of weakly bound molecules Journal Article

Author(s): Lemeshko, Mikhail P; Friedrich, Břetislav
Article Title: Rotational and rotationless states of weakly bound molecules
Abstract: By making use of the quantization rule of Raab and Friedrich [Phys. Rev. A 78, 022707 (2008)], we derive simple and accurate formulae for the number of rotational states supported by a weakly bound vibrational level of a diatomic molecule and the rotational constants of any such levels up to the threshold, and provide a criterion for determining whether a given weakly bound vibrational level is rotationless. The results depend solely on the long-range part of the molecular potential and are applicable to halo molecules.
Keywords: Rotational state; Vibrational levels; Diatomic molecules; Bound molecules; Molecular potential; Quantization rule; Rotational constants
Journal Title: Physical Review A - Atomic, Molecular, and Optical Physics
Volume: 79
Issue 5
ISSN: 1094-1622
Publisher: American Physical Society  
Date Published: 2009-05-26
Start Page: Article number: 050501
DOI: 10.1103/PhysRevA.79.050501
Open access: yes (repository)
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