Comparison between wave functions in the random phase approximation, renormalized random phase approximation, and self-consistent random phase approximation methods

1999 ◽  
Vol 60 (2) ◽  
Author(s):  
J. G. Hirsch ◽  
O. Civitarese ◽  
M. Reboiro
Keyword(s):  
Random Phase Approximation ◽  
Random Phase ◽  
Wave Functions ◽  
Approximation Methods ◽  
Phase Approximation ◽  
Self Consistent

scholarly journals Selfconsistent random phase approximation methods

2021 ◽  
Vol 155 (4) ◽  
pp. 040902
Author(s):  
Jason M. Yu ◽  
Brian D. Nguyen ◽  
Jeffrey Tsai ◽  
Devin J. Hernandez ◽  
Filipp Furche
Keyword(s):  
Random Phase Approximation ◽  
Random Phase ◽  
Approximation Methods ◽  
Phase Approximation

Self-consistent random-phase approximation for three-body forces

1978 ◽  
Vol 4 (9) ◽  
pp. 1427-1440 ◽  
Author(s):  
M K Weigel ◽  
J Winter
Keyword(s):  
Random Phase Approximation ◽  
Random Phase ◽  
Phase Approximation ◽  
Body Forces ◽  
Self Consistent ◽  
Three Body

THE NUMBER SELF-CONSISTENT RENORMALIZED RANDOM PHASE APPROXIMATION

2006 ◽  
Vol 20 (30n31) ◽  
pp. 5334-5337
Author(s):  
A. MARIANO
Keyword(s):  
Charge Exchange ◽  
Random Phase Approximation ◽  
Random Phase ◽  
Critical Value ◽  
Phase Approximation ◽  
Heavy Nuclei ◽  
Electromagnetic Transitions ◽  
Self Consistent ◽  
Eigen Values ◽  
Beta Decays

RPA and its quasiparticle generalization (QRPA) have been widely used to study electromagnetic transitions and beta decays in medium and heavy nuclei, being the pn-QRPA charge exchange mode extensively employed in the description of single and double beta decays in vibrational nuclei. However develops a collapse, i.e. it presents imaginary eigen-values for strengths beyond a critical value of the force. Extensions called renormalized QRPA (RQRPA) do not develop any collapse going beyond the simplest quasiboson approximation, however they present several drawbacks which will be analyzed.

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