arXiv:1206.1645·v1·Nuclear Theory
A Role of the Quasiparticle in the Conservation of the Fermion Number
Y. Tsue (Kochi Univ., Japan)🇯🇵 · C. Providencia (Univ. de Coimbra, Portugal)🇵🇹 · J. da Providencia (Univ. de Coimbra, Portugal)🇵🇹 · M.Yamamura (Kansai Univ., Japan)🇯🇵
Abstract
The role of the "quasiparticle" introduced in last paper by the present authors is discussed. It serves as a guide for the deformation of the Cooper-pair in the BCS-Bogoliubov approach. As an illustrative example, a certain case is treated. This case produces the su(1,1)-like behavior in the su(2)-algebraic many-fermion system.
Comments: 10 pages, 2 figures