Instability of Thermal Equilibrium State of the Lipkin Model : Nuclear Physics

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概要

• 論文の詳細を見る

• The Lipkin model is the simplest algebraic model in which we can investigate a ground state transition in a fermion system. This model is also applied to the description of the thermal equilibrium state. In this paper, we investigate its stability with respect to changes in the particle number and the volume. In order to enable us to take the thermal limit, an appropriate number dependence is introduced into the force strength. We show with the use of a mean field approximation that the thermal equilibrium state in the condensed phase of particle-hole pairs becomes unstable.

• 理論物理学刊行会の論文
• 1999-05-25

著者

• Providencia Joao

  Departamento De Fisica Universidade De Coimbra

• Kuriyama Atsushi

  Faculty Of Engineering Kansai University

• Yamamura Masatoshi

  Department Of Pure And Applied Physics Faculty Of Engineering Science Kansai University

• Tsue Yasuhiko

  Department Of Physics Kyoto University

• Kuriyama A

  Faculty Of Engineering Kansai University

• Yamamura Masatoshi

  Faculty Of Engineering Kansai University

• YAMAMURA Masatoshi

  Faculty of Engineering ,Kansai University

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