TY - JOUR
T1 - Lowest vibrational states of He4 He+3
T2 - Non-Born-Oppenheimer calculations
AU - Stanke, Monika
AU - Kdziera, Dariusz
AU - Bubin, Sergiy
AU - Molski, Marcin
AU - Adamowicz, Ludwik
PY - 2007/11/14
Y1 - 2007/11/14
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevA.76.052506
DO - 10.1103/PhysRevA.76.052506
M3 - Article
AN - SCOPUS:36148977966
SN - 1050-2947
VL - 76
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 5
M1 - 052506
ER -