Matrix element calculation and a selection rule in the unitary group approach

1985 ◽  
Vol 63 (9) ◽  
pp. 1151-1156 ◽  
Author(s):  
A. Lev ◽  
M. Schlesinger ◽  
G. W. F. Drake ◽  
R. D. Kent
Keyword(s):  
Matrix Element ◽  
Atomic Structure ◽  
Unitary Group ◽  
Selection Rule ◽  
Closed Form Expression ◽  
Matrix Elements ◽  
Element Calculation ◽  
Form Expression ◽  
Group Approach ◽  
Unitary Group Approach

A closed form expression for the evaluation of many-electron matrix elements in the unitary group approach to the theory of atomic structure is presented in terms of simple factors. In addition, a new selection rule for nonvanishing matrix elements is given.

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