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- W2080984328 abstract "We have performed high-accuracy quantum mechanical calculations for the three lowest $S$ states of the beryllium ion $({^{9}text{B}text{e}}^{+})$. The nonrelativistic part of the calculations was done with the variational approach and explicitly included the nuclear motion (i.e., the finite-nuclear-mass approach). The nonrelativistic wave functions were expanded in terms of explicitly correlated Gaussian functions. These nonrelativistic functions were subsequently used to calculate the leading ${ensuremath{alpha}}^{2}$ relativistic corrections $(ensuremath{alpha}=1/c)$ and the ${ensuremath{alpha}}^{3}$ and ${ensuremath{alpha}}^{4}$ QED (quantum electrodynamics) corrections. In the ${ensuremath{alpha}}^{4}$ QED correction we only accounted for its dominant component typically contributing about 80% of the correction. With those the present results are the most accurate ever obtained for ${^{9}text{B}text{e}}^{+}$. They also agree with the experimentally measured transitions within less than $0.1text{ }{text{cm}}^{ensuremath{-}1}$." @default.
- W2080984328 created "2016-06-24" @default.
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- W2080984328 date "2008-06-12" @default.
- W2080984328 modified "2023-10-18" @default.
- W2080984328 title "Three lowest<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>S</mml:mi></mml:math>states of<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msup><mml:mrow><mml:mmultiscripts><mml:mtext>B</mml:mtext><mml:mprescripts /><mml:none /><mml:mn>9</mml:mn></mml:mmultiscripts><mml:mtext>e</mml:mtext></mml:mrow><mml:mo>+</mml:mo></mml:msup></mml:mrow></mml:math>calculated with including nuclear motion and relativistic and QED …" @default.
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- W2080984328 doi "https://doi.org/10.1103/physreva.77.062509" @default.
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