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9 papers · 1 filter
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…
The repulsion between localization centers in the Anderson model
Fumihiko Nakano
In this note we show that, a simple combination of deep results in the theory of random Schrödinger operators yields a quantitative estimate of the fact that the localization cente…
Modified Hagedorn formula including temperature fluctuation - Estimation of temperatures at RHIC experiments -
M. Biyajima, T. Mizoguchi, N. Nakajima +2
We have systematically estimated the possible temperatures obtained from an analysis of recent data on distributions observed at RHIC experiments. Using the fact that observe…