scholarly journals Hot neutron matter from a self-consistent Green's-functions approach

2009 ◽  
Vol 79 (2) ◽  
Author(s):  
Arnau Rios ◽  
Artur Polls ◽  
Isaac Vidaña
Keyword(s):  
Green's Functions ◽  
Green’S Functions ◽  
Neutron Matter ◽  
Self Consistent

Calculation of the vibration spectra of isotopic alloys using the Green's functions method

1970 ◽  
Vol 48 (19) ◽  
pp. 2305-2319 ◽  
Author(s):  
F. Klvaňa
Keyword(s):  
Perturbation Method ◽  
Green’S Function ◽  
Long Range ◽  
Green's Function ◽  
Green's Functions ◽  
Green’S Functions ◽  
The Other ◽  
Vibration Spectra ◽  
Self Consistent ◽  
Long Range Ordering

Three methods are developed for the calculation of the inverse Green's function of alloys. One is a perturbation method using an expansion in powers of the concentration; the other two are nonperturbational and one of these is self-consistent. Methods are developed for lattices with both short- and long-range ordering.

scholarly journals Self-consistent Green's functions formalism with three-body interactions

2013 ◽  
Vol 88 (5) ◽  
Author(s):  
Arianna Carbone ◽  
Andrea Cipollone ◽  
Carlo Barbieri ◽  
Arnau Rios ◽  
Artur Polls
Keyword(s):  
Green's Functions ◽  
Green’S Functions ◽  
Self Consistent ◽  
Three Body

scholarly journals SPECTROSCOPIC FACTORS IN 16O AND NUCLEON ASYMMETRY

2009 ◽  
Vol 24 (11) ◽  
pp. 2060-2068 ◽  
Author(s):  
C. BARBIERI ◽  
W. H. DICKHOFF
Keyword(s):  
Random Phase Approximation ◽  
Green's Functions ◽  
Green’S Functions ◽  
Collective Excitation ◽  
Random Phase ◽  
Heavy Ion ◽  
The Self ◽  
Phase Approximation ◽  
Spectroscopic Factors ◽  
Self Consistent

The self-consistent Green's functions method is employed to study the spectroscopic factors of quasiparticle states around 16,28 O and 40,60 Ca . The Faddeev random phase approximation (FRPA) is used to account for the coupling of particles with collective excitation modes. Results for 16 O are reviewed first. The same approach is applied to isotopes with large proton-neutron asymmetry to estimate its effect on spectroscopic factors. The results, based on the chiral N3LO force, exhibit an asymmetry dependence similar to that observed in heavy-ion knockout experiments but weaker in magnitude.

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