The relativistic open shell coupled cluster method: Direct calculation of excitation energies in the Ne atom

1992 ◽  
Vol 97 (11) ◽  
pp. 8455-8458 ◽  
Author(s):  
Ephraim Ilyabaev ◽  
Uzi Kaldor
Keyword(s):  
Direct Calculation ◽  
Open Shell ◽  
Cluster Method ◽  
Coupled Cluster ◽  
Coupled Cluster Method ◽  
Excitation Energies

scholarly journals Shell-model coupled-cluster method for open-shell nuclei

2018 ◽  
Vol 98 (5) ◽  
Author(s):  
Z. H. Sun ◽  
T. D. Morris ◽  
G. Hagen ◽  
G. R. Jansen ◽  
T. Papenbrock
Keyword(s):  
Shell Model ◽  
Open Shell ◽  
Cluster Method ◽  
Coupled Cluster ◽  
Coupled Cluster Method

The Fock-Space Coupled-Cluster Method in the Calculation of Excited State Properties

2005 ◽  
Vol 70 (6) ◽  
pp. 811-825 ◽  
Author(s):  
Monika Musiał ◽  
Leszek Meissner
Keyword(s):  
Experimental Data ◽  
Excited States ◽  
Fock Space ◽  
Hamiltonian Formulation ◽  
Basis Sets ◽  
Cluster Method ◽  
Coupled Cluster ◽  
Coupled Cluster Method ◽  
Excitation Energies ◽  
Equilibrium Geometries

Our recently developed intermediate Hamiltonian Fock-space coupled-cluster (FS-CC) method with singles and doubles is applied to calculation of equilibrium geometries, harmonic frequencies and adiabatic excitation energies for some excited states of N2 and CO. Due to the intermediate Hamiltonian formulation, which provides a robust computational scheme for solving the FS-CC equations, and the efficient factorization strategy, relatively large basis sets and reference spaces are employed permitting a comparison of calculated properties with experimental data.

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