Browsing Articles by Subject "Non-Born-Oppenheimer calculations"

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Lowest vibrational states of 4He3He+: Non-Born-Oppenheimer calculations

Stanke, Monika; Ke¸dziera, Dariusz; Bubin, Sergiy; Molski, Marcin; Adamowicz, Ludwik (2007)

Very accurate quantum mechanical calculations of the first five vibrational states of the 4He3He+ molecular ion are reported. The calculations have been performed explicitly including the coupling of the electronic ...
Non-Born-Oppenheimer calculations of the lowest vibrational energy of HD including relativistic corrections

Stanke, Monika; Bubin, Sergiy; Molski, Marcin; Adamowicz, Ludwik (2009)

In this work we report variational calculations of the two lowest vibrational states of the HD molecule within the framework that does not assume the Born-Oppenheimer BO approximation. The nonrelativistic energies of ...