scholarly journals A detailed study of the configuration selected multireference configuration interaction method combined with perturbation theory to correct the wave function

1994 ◽  
Vol 100 (2) ◽  
pp. 1380-1386 ◽  
Author(s):  
B. Engels
Keyword(s):  
Wave Function ◽  
Perturbation Theory ◽  
Configuration Interaction ◽  
Interaction Method ◽  
Configuration Interaction Method

scholarly journals Calculation of Polarizabilities for Atoms with Open Shells

Symmetry ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 1950
Author(s):  
Vladimir Dzuba
Keyword(s):  
Perturbation Theory ◽  
Excited States ◽  
Configuration Interaction ◽  
New Physics ◽  
Atomic Clocks ◽  
Interaction Method ◽  
Configuration Interaction Method ◽  
Open Shells ◽  
New Generation ◽  
Dynamic Polarizabilities

A version of the configuration interaction method for atoms with open shells (the Configuration Interaction with Perturbation Theory—CIPT method, PRA 95, 012503 (2017)) is extended for calculation of static and dynamic polarizabilities. Its use is demonstrated by calculation of the polarizabilities for the ground and excited states of Er, Tm and Yb. It is proved to be an useful tool in designing a new generation of optical atomic clocks sensitive to new physics.

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