Application of the second-order ground-state correlation and random-phase approximation on photoionization cross section of manganese

2003 ◽  
Vol 12 (2) ◽  
pp. 159-163
Author(s):  
Lu Peng-Fei ◽  
Liu Jin-Chao ◽  
Yang Xiang-Dong ◽  
Ma Xiao-Guang
Keyword(s):  
Cross Section ◽  
Ground State ◽  
Random Phase Approximation ◽  
Random Phase ◽  
Photoionization Cross Section ◽  
Second Order ◽  
Phase Approximation ◽  
State Correlation ◽  
Ground State Correlation

VARIATIONAL RANDOM PHASE APPROXIMATION FOR THE ANHARMONIC OSCILLATOR

1991 ◽  
Vol 06 (26) ◽  
pp. 2429-2435 ◽  
Author(s):  
J. DUKELSKY ◽  
P. SCHUCK
Keyword(s):  
Wave Function ◽  
Density Matrix ◽  
Ground State ◽  
Random Phase Approximation ◽  
Anharmonic Oscillator ◽  
Random Phase ◽  
Oscillator Model ◽  
Phase Approximation ◽  
Truncation Scheme

The recently derived Variational Random Phase Approximation is examined using the anharmonoic oscillator model. Special attention is paid to the ground state RPA wave function and the convergence of the proposed truncation scheme to obtain the diagonal density matrix.

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