Correlation effects on the third-frequency-moment sum rule of electron liquids

1987 ◽  
Vol 35 (6) ◽  
pp. 3003-3004 ◽  
Author(s):  
Naoki Iwamoto ◽  
E. K. U. Gross
Keyword(s):  
Correlation Effects ◽  
Sum Rule ◽  
The Third ◽  
Electron Liquids

scholarly journals Sum-Rule Analysis of Long-Wavelength Excitations in Electron Liquids

1975 ◽  
Vol 54 (4) ◽  
pp. 1077-1092 ◽  
Author(s):  
S. Ichimaru ◽  
H. Totsuji ◽  
T. Tange ◽  
D. Pines
Keyword(s):  
Sum Rule ◽  
Long Wavelength ◽  
Electron Liquids ◽  
Rule Analysis

Tensor correlation effects in the energy weighted sum rule for nuclear spin-flip excitation operators

1984 ◽  
Vol 134 (3-4) ◽  
pp. 143-146 ◽  
Author(s):  
G. Orlandini ◽  
M. Traini ◽  
R. Ferrari ◽  
R. Leonardi
Keyword(s):  
Nuclear Spin ◽  
Weighted Sum ◽  
Correlation Effects ◽  
Sum Rule ◽  
Tensor Correlation ◽  
Spin Flip

The contracted Schrödinger equation methodology: study of the third-order correlation effects

2007 ◽  
Vol 118 (3) ◽  
pp. 503-509 ◽  
Author(s):  
C. Valdemoro ◽  
L. M. Tel ◽  
D. R. Alcoba ◽  
E. Pérez-Romero
Keyword(s):  
Schrödinger Equation ◽  
Schrodinger Equation ◽  
Correlation Effects ◽  
Third Order ◽  
The Third

scholarly journals Энергия связи основного состояния бериллиеподобного молибдена: корреляционные и квантово-электродинамические эффекты

2021 ◽  
Vol 129 (5) ◽  
pp. 559
Author(s):  
А.В. Малышев ◽  
Ю.С. Кожедуб ◽  
И.С. Анисимова ◽  
Д.А. Глазов ◽  
М.Ю. Кайгородов ◽  
...  
Keyword(s):  
Perturbation Theory ◽  
Binding Energy ◽  
High Precision ◽  
Ground State ◽  
Quantum Electrodynamics ◽  
Electron Interaction ◽  
Correlation Effects ◽  
The Third ◽  
Theoretical Predictions ◽  
Applied Approach

High-precision calculations of the ground-state binding energy of berylliumlike molybdenum ($Z=42$) are performed. The applied approach merges rigorous quantum-electrodynamics (QED) treatment up to the second order of perturbation theory in the framework of the Furry picture and the third- and higher-order correlation effects evaluated within the Breit approximation. The mixing of the close configurations of the same symmetry due to the electron--electron interaction is considered by employing the QED perturbation theory for quasi-degenerate levels. The most accurate up-to-date theoretical predictions for the binding energy are obtained.

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