Quasidegenerate many‐body perturbation theory with self‐consistently adapted core reference state (SCA QD MBPT). I. Theoretical formulation and its application to the potential energy curve of the ground state of Li2

1986 ◽  
Vol 84 (6) ◽  
pp. 3260-3270 ◽  
Author(s):  
Ivan Hubač ◽  
Michal Svrček ◽  
Anna Balková
Keyword(s):  
Perturbation Theory ◽  
Potential Energy ◽  
Ground State ◽  
Potential Energy Curve ◽  
Reference State ◽  
Energy Curve ◽  
Many Body ◽  
Theoretical Formulation ◽  
Many Body Perturbation Theory

A study of the reliability of different many-body methods: Potential energy curve for the ground state of Be2

1988 ◽  
Vol 125 (2-3) ◽  
pp. 255-260 ◽  
Author(s):  
Ivan Černušaḱ ◽  
Jozef Noga ◽  
Geerd H.F. Diercksen ◽  
Andrzej J. Sadlej
Keyword(s):  
Potential Energy ◽  
Ground State ◽  
Potential Energy Curve ◽  
Energy Curve ◽  
Many Body

Accurate Potential Energy Curve for B2. Ab Initio Elucidation of the Experimentally Elusive Ground State Rotation-Vibration Spectrum

2012 ◽  
Vol 116 (7) ◽  
pp. 1717-1729 ◽  
Author(s):  
Laimutis Bytautas ◽  
Nikita Matsunaga ◽  
Gustavo E. Scuseria ◽  
Klaus Ruedenberg
Keyword(s):  
Potential Energy ◽  
Ab Initio ◽  
Ground State ◽  
Potential Energy Curve ◽  
Vibration Spectrum ◽  
Energy Curve

Potential energy curve of the ground state of the titanium dimer

1999 ◽  
Vol 461-462 ◽  
pp. 351-357 ◽  
Author(s):  
Yoshi-ichi Suzuki ◽  
Takeshi Noro ◽  
Fukashi Sasaki ◽  
Hiroshi Tatewaki
Keyword(s):  
Potential Energy ◽  
Ground State ◽  
Potential Energy Curve ◽  
Energy Curve

scholarly journals The λ 4502 Band of NH

1935 ◽  
Vol 151 (874) ◽  
pp. 602-609 ◽  
Keyword(s):  
Potential Energy ◽  
Ground State ◽  
Potential Energy Curve ◽  
Energy Curve ◽  
Current Discharge

From a consideration of the possible electron configurations in the NH molecule Mulliken predicted a stable 1 Ʃ + state lying about 1·9 volts above the ground state 3 Ʃ - . It is therefore to be anticipated that tran­sitions to this level from the known 1 II level will be observed simultaneously with the known 1 II → 1 ∆ transition. Mulliken estimated the shape of the potential energy curve for the 1 Ʃ + state; this corresponds to the existence of a 1 II → 1 Ʃ + band degraded to the red and lying in the neighbourhood of λ 4100. The plates from which the 1 II → 1 ∆ band was analysed were therefore examined for evidence of the 1 II → 1 Ʃ + band. After eliminating the numerous lines of the intense secondary spectrum of hydrogen which occurs in this region there remained only five unidentified lines. These are now seen to be the most intense lines of the Q branch of the λ 4502 band. The plates record the spectrum of a heavy current discharge in hydrogen containing a trace of nitrogen.

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