Lowest vibrational states of He4 He+3

Non-Born-Oppenheimer calculations

Monika Stanke, Dariusz Kdziera, Sergiy Bubin, Marcin Molski, Ludwik Adamowicz

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Very accurate quantum mechanical calculations of the first five vibrational states of the He4 He+3 molecular ion are reported. The calculations have been performed explicitly including the coupling of the electronic and nuclear motions [i.e., without assuming the Born-Oppenheimer (BO) approximation]. The nonrelativistic non-BO wave functions were used to calculate the α2 relativistic mass velocity, Darwin, and spin-spin interaction corrections. For the lowest vibrational transition, whose experimental energy is established with high precision, the calculated and the experimental results differ by only 0.16 cm-1.

Original languageEnglish
Article number052506
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume76
Issue number5
DOIs
Publication statusPublished - Nov 14 2007
Externally publishedYes

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vibrational states
Born-Oppenheimer approximation
molecular ions
wave functions
electronics
interactions
energy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

Cite this

Lowest vibrational states of He4 He+3 : Non-Born-Oppenheimer calculations. / Stanke, Monika; Kdziera, Dariusz; Bubin, Sergiy; Molski, Marcin; Adamowicz, Ludwik.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 76, No. 5, 052506, 14.11.2007.

Research output: Contribution to journalArticle

Stanke, Monika ; Kdziera, Dariusz ; Bubin, Sergiy ; Molski, Marcin ; Adamowicz, Ludwik. / Lowest vibrational states of He4 He+3 : Non-Born-Oppenheimer calculations. In: Physical Review A - Atomic, Molecular, and Optical Physics. 2007 ; Vol. 76, No. 5.
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