Lifetimes of rovibrational levels of HD +

Nikita Kirnosov; Keeper L. Sharkey; Ludwik Adamowicz

doi:10.1103/PhysRevA.89.012513

Lifetimes of rovibrational levels of HD +

Nikita Kirnosov, Keeper L. Sharkey, Ludwik Adamowicz

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

A method for calculating the oscillator strengths for rovibrational transitions of a diatomic system within an approach that is not based on the Born-Oppenheimer (BO) approximation is presented. The non-BO wave functions representing the bound states of the system are expanded in terms of explicitly correlated Gaussian functions. The method is applied to calculate oscillator strengths for the HD+ ion for transitions between rotationless vibrational states and vibrational states which are rotationally singly excited. The effect of the asymmetry of the HD+ charge distribution on the oscillator strengths and on the lifetimes of the states is elucidated.

Original language	English (US)
Article number	012513
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	89
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevA.89.012513
State	Published - Jan 27 2014

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.89.012513

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AB - A method for calculating the oscillator strengths for rovibrational transitions of a diatomic system within an approach that is not based on the Born-Oppenheimer (BO) approximation is presented. The non-BO wave functions representing the bound states of the system are expanded in terms of explicitly correlated Gaussian functions. The method is applied to calculate oscillator strengths for the HD+ ion for transitions between rotationless vibrational states and vibrational states which are rotationally singly excited. The effect of the asymmetry of the HD+ charge distribution on the oscillator strengths and on the lifetimes of the states is elucidated.

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Lifetimes of rovibrational levels of HD +

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