399 citations
- University of KochiJP206 papers
- The University of TokyoJP86 papers
- Kansai UniversityJP69 papers
- University of CoimbraPT69 papers
- High Energy Accelerator Research OrganizationJP48 papers
- Tokyo City UniversityJP45 papers
- University of UtahUS45 papers
- Yonsei UniversityKR45 papers
- Université Libre de BruxellesBE44 papers
- Kyoto UniversityJP41 papers
- The University of OsakaJP39 papers
- Tokyo Institute of TechnologyJP38 papers
6 papers · 2 filters
Semi-Classical Approach to the Two-Level Pairing Model --Various Aspects of Phase Change--
Y. Tsue, C. Providencia, J. da Providencia +1
Aspects of the phase change of the two-level pairing model are investigated in the semi-classical treatment by using the variational approch with the mixed-mode coherent state. In…
The symmetry energy at subnuclear densities and nuclei in neutron star crusts
Kazuhiro Oyamatsu, Kei Iida
We examine how the properties of inhomogeneous nuclear matter at subnuclear densities depend on the density dependence of the symmetry energy. Using a macroscopic nuclear model we…
Classical and Quantal Descriptions of Small Amplitude Fluctuations Around Equilibriums in the Two-Level Pairing Model
Y. Tsue, C. Providencia, J. da Providencia +1
Various classical counterparts for the two-level pairing model in a many-fermion system are presented in the Schwinger boson representation. It is shown that one of the key ingredi…
The Lipkin Model in Many-Fermion System as an Example of the su(1,1) times su(1,1)-Algebraic Model
C. Providencia, J. da Providencia, Y. Tsue +1
Following the idea, recently, proposed by the present authors for the two-level pairing model, the Lipkin model is reexamined. It is a natural generalization of the method already…
A Note on the Two-Level Pairing Model Obeying the su(2)*su(2)-Algebra
C. Providencia, J. da Providencia, Y. Tsue +1
The two-level pairing model obeying the su(2)*su(2)-algebra, which was discussed in the previous paper, is re-formed in the framework of the su(1,1)*su(1,1)-algebra in the Schwinge…
A New Boson Realization of Two-Level Pairing Model in Many-Fermion System and its Classical Counterpart
C. Providencia, J. da Providencia, Y. Tsue +1
A new method for describing the two-level pairing model in a many-fermion system is presented. Basic idea comes from the Schwinger boson representation for the su(2) cross su(2)-al…