Relativistic and QED corrections to the 2pσu( = 1) vibrational state of the H+2 molecular ion
J. Carbonell, R. Lazauskas, V. I. Korobov
Abstract
Relativistic and QED corrections to the recently discovered first vibrational 2pσu state are presented. This state has an extremely small nonrelativistic binding energy EB=1.085045252(1)×10-9 a.u. Its wave functions has a maximum at R≈100 a.u. and extends up to several hundreds. It is shown that this state does not disappear if higher order relativistic and QED corrections, including the Casimir--Polder effect, are taken into account.
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