scholarly journals Finite-temperature mean-field approximations for shell model Hamiltonians: the code HF-SHELL

2021 ◽  
Vol 57 (2) ◽  
Author(s):  
W. Ryssens ◽  
Y. Alhassid
Keyword(s):  
Shell Model ◽  
Finite Temperature ◽  
Mean Field ◽  
Mean Field Approximations ◽  
Model Hamiltonians

Correlated finite temperature mean field approximations

1992 ◽  
Vol 277 (1-2) ◽  
pp. 18-22 ◽  
Author(s):  
R. Rossignoli ◽  
R.M. Quick ◽  
H.G. Miller
Keyword(s):  
Finite Temperature ◽  
Mean Field ◽  
Mean Field Approximations

Self-consistent approximations for field theories at finite temperature

1993 ◽  
Vol 71 (5-6) ◽  
pp. 285-294
Author(s):  
M. H. Thoma
Keyword(s):  
Finite Temperature ◽  
Mean Field ◽  
Field Approximation ◽  
Two Dimensions ◽  
Mean Field Approximation ◽  
Coupling Constant ◽  
Starting Point ◽  
Consistent Approximations ◽  
The Mean ◽  
Mean Field Approximations

Various mean field approximations at finite temperature are used for calculating ground state energies and propagators of the [Formula: see text] theory in two dimensions and quantum chromodynamics (QCD). In the case of the [Formula: see text] theory a symmetry restoration is observed above a critical coupling constant if a temperature independent renormalization is used. In the case of QCD the mean field approximation is insufficient but can be regarded as a starting point for more complicated approximations, which are discussed qualitatively.

scholarly journals SHELL MODEL FOR HEAVY NUCLEI AND ITS APPLICATION IN NUCLEAR ASTROPHYSICS

2006 ◽  
Vol 15 (08) ◽  
pp. 1695-1709 ◽  
Author(s):  
YANG SUN
Keyword(s):  
Shell Model ◽  
Nuclear Physics ◽  
Mean Field ◽  
Nuclear Astrophysics ◽  
Heavy Nuclei ◽  
Projected Shell Model ◽  
Model Calculations ◽  
Diagonalization Method ◽  
Basic Philosophy ◽  
Mean Field Approximations

Performing shell model calculations for heavy nuclei is a long-standing problem in nuclear physics. The shell model truncation in the configuration space is an unavoidable step. The Projected Shell Model (PSM) truncates the space under the guidance of the deformed mean-field solutions. This implies that the PSM uses a novel and efficient way to bridge the two conventional methods: the deformed mean-field approximations, which are widely applied to heavy nuclei but able to describe the physics only in the intrinsic frame, and the spherical shell model diagonalization method, which is most fundamental but feasible only for small systems. We discuss the basic philosophy in construction of the PSM (or generally PSM-like) approach. Several examples from the PSM calculations are presented. Astrophysical applications are emphasized.

Effective finite temperature mean field approximations in finite systems

1995 ◽  
Vol 591 (1) ◽  
pp. 15-40 ◽  
Author(s):  
R. Rossignoli ◽  
N. Canosa ◽  
P. Ring
Keyword(s):  
Finite Temperature ◽  
Mean Field ◽  
Finite Systems ◽  
Mean Field Approximations

Correlated finite temperature mean field approximations

1994 ◽  
Vol 570 (1-2) ◽  
pp. 217-224 ◽  
Author(s):  
H.G. Miller ◽  
R.M. Quick ◽  
R.R. Rossignoli ◽  
G.D. Yen
Keyword(s):  
Finite Temperature ◽  
Mean Field ◽  
Mean Field Approximations
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