Self-consistent random-phase approximation at finite temperature within the Richardson model

2006 ◽  
Vol 74 (3) ◽  
Author(s):  
Nguyen Dinh Dang ◽  
Kosai Tanabe
Keyword(s):  
Finite Temperature ◽  
Random Phase Approximation ◽  
Random Phase ◽  
Phase Approximation ◽  
Self Consistent

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.

Relativistic Random Phase Approximation At Finite Temperature

2009 ◽  
Author(s):  
Y. F. Niu ◽  
N. Paar ◽  
D. Vretenar ◽  
J. Meng ◽  
Matko Milin ◽  
...  
Keyword(s):  
Finite Temperature ◽  
Random Phase Approximation ◽  
Random Phase ◽  
Phase Approximation
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