Energies and Oscillator Strengths Using Configuration Interaction Wave Functions

1996 ◽  
pp. 27-64
Author(s):  
Alan Hibbert
Keyword(s):  
Configuration Interaction ◽  
Wave Functions ◽  
Oscillator Strengths

Level energies and oscillator strengths in Ni(XII)

2003 ◽  
Vol 81 (6) ◽  
pp. 861-867 ◽  
Author(s):  
Narendra Singh ◽  
Avnindra K Singh ◽  
Man Mohan
Keyword(s):  
Configuration Interaction ◽  
Ground State ◽  
Transition Probabilities ◽  
Wave Functions ◽  
Oscillator Strengths

Configuration interaction wave functions have been calculated and used to evaluate oscillator strengths and transition probabilities for dipole-allowed transitions from the ground-state levels to those of the 3s3p6 and 3s23p43d states of Ni(XII), in both LS and LSJ coupling schemes. Lifetimes of the excited levels are determined. The present results are compared with other available calculations and experiments. PACS No.: 32.70.Cs

A configuration interaction study of the oscillator strengths for various low-lying transitions of the CO molecule

1992 ◽  
Vol 161 (3) ◽  
pp. 351-362 ◽  
Author(s):  
Lek Chantranupong ◽  
K. Bhanuprakash ◽  
Michael Honigmann ◽  
Gerhard Hirsch ◽  
Robert J. Buenker
Keyword(s):  
Configuration Interaction ◽  
Oscillator Strengths ◽  
Interaction Study

Theoretical ionization energies and oscillator strengths for the sodium isoelectronic sequence

1969 ◽  
Vol 47 (8) ◽  
pp. 835-838 ◽  
Author(s):  
R. P. McEachran ◽  
C. E. Tull ◽  
M. Cohen
Keyword(s):  
Matrix Element ◽  
Transition Matrix ◽  
Transition Matrix Element ◽  
Wave Functions ◽  
Oscillator Strengths ◽  
Isoelectronic Sequence ◽  
Ionization Energies ◽  
Core Approximation

Orbital wave functions for a number of 2S, 2P0, 2D, and 2F0 states of Na, Mg+, and Al2+ have been calculated by means of the frozen core approximation. The oscillator strengths of all allowed dipole transitions have been determined using both length and velocity formulations for the transition matrix element; these results agree with each other to within a few percent.

scholarly journals The Computation of Energy Levels and Oscillator Strengths of Fe X to Fe XIII Involving the Adjustment of Parameters to Achieve Consistency with Observations

1977 ◽  
Vol 43 ◽  
pp. 41-41a
Author(s):  
B.C. Fawcett ◽  
G.E. Bromage ◽  
R.D. Cowan
Keyword(s):  
Ab Initio ◽  
Configuration Interaction ◽  
Energy Levels ◽  
Average Energy ◽  
Oscillator Strengths ◽  
Spin Orbit ◽  
Adjustment Of Parameters

Energy levels and oscillator strengths are calculated for the 3s23pn–3s23pn–13d transition arrays of Fe X, Fe XI, Fe XII and Fe XIII. The Slater radial integrals for these computations are adjusted so as to become consistent with established energy levels. Pertinent configuration interactions are included and the interaction integrals are reduced by up to 35% from values calculated ab initio, to achieve consistency.Initial theroretical calculations are made using the ab initio Hartree-X, Slater-Condon programme of Cowan (1967, 1968), the second of which now includes configuration interaction. The first programme computes values for the average energy of the configuration Eav, the electrostatic direct integrals Fk and exchange integrals Gk , the spin-orbit parameters ζ, and the configuration interaction integrals Rk. From these the second programme computes energy levels, wavelengths and oscillator strengths for the transition arrays concerned.

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