A description of collective degree of freedom as a dynamical variable

1990 ◽  
Vol 167 (2) ◽  
pp. 417-432
Author(s):  
Yasushi Takahashi
Keyword(s):  
Dynamical Variable ◽  
Degree Of Freedom ◽  
Collective Degree

SD-pair shell model: Vibrational and rotational limits in the interacting boson–fermion model for like-nucleon system

2020 ◽  
Vol 29 (10) ◽  
pp. 2050088
Author(s):  
B. C. He ◽  
Y. Zhang ◽  
L. Li ◽  
Y. A. Luo ◽  
F. Pan ◽  
...  
Keyword(s):  
Shell Model ◽  
Quadrupole Interaction ◽  
Single Particle ◽  
Degree Of Freedom ◽  
Interacting Boson Model ◽  
Pairing Interaction ◽  
Nucleon System ◽  
Fermion Model ◽  
Collective Degree ◽  
Boson Model

Typical features of the Bose–Fermi symmetries associated with [Formula: see text] and [Formula: see text] limits in the interacting boson model are described in the SD-pair shell model (SDPSM) framework for like-nucleon system. It is found that the limiting spectra associated with [Formula: see text] (vibrational) and [Formula: see text] (rotational) in the interacting boson–fermion model can be well reproduced in the SDPSM framework. It is shown that coupling of collective degree of freedom with the single-particle degree of freedom in the pairing interaction almost has no effect on the spectrum of odd-A system comparing to the adjacent even–even system, while the coupling of the collective degree of freedom with the single-particle degree of freedom in the quadrupole–quadrupole interaction results in the level splitting of several excited levels.

Decoupling a collective degree of freedom from a model for tunneling in many-particle systems

1988 ◽  
Vol 37 (5) ◽  
pp. 2156-2161 ◽  
Author(s):  
Aurel Bulgac ◽  
Abraham Klein ◽  
Giu Do Dang
Keyword(s):  
Particle Systems ◽  
Degree Of Freedom ◽  
Collective Degree

Single-collective-degree-of-freedom models of macroscopic quantum nucleation

1995 ◽  
Vol 51 (13) ◽  
pp. 8446-8456 ◽  
Author(s):  
Takashi Nakamura ◽  
Yusuke Kanno ◽  
Shin Takagi
Keyword(s):  
Degree Of Freedom ◽  
Macroscopic Quantum ◽  
Collective Degree ◽  
Quantum Nucleation

scholarly journals PAIRING COLLECTIVE DEGREE OF FREEDOM.

1970 ◽  
Author(s):  
D. R. Bes ◽  
R. A. Broglia ◽  
R. P.J. Perazzo
Keyword(s):  
Degree Of Freedom ◽  
Collective Degree

Approximating power for significance tests with one degree of freedom.

1997 ◽  
Vol 2 (2) ◽  
pp. 186-191 ◽  
Author(s):  
William P. Dunlap ◽  
Leann Myers
Keyword(s):  
Degree Of Freedom ◽  
Significance Tests
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