Some algebraic structures for the bosonic three-level systems

被引:5
作者
Hammad, M. M. [1 ]
Fawaz, S. M. [2 ]
El-Hammamy, M. N. [2 ]
Motaweh, H. A. [2 ]
Doma, S. B. [3 ]
机构
[1] Damanhour Univ, Fac Sci, Math Dept, Damanhour, Egypt
[2] Damanhour Univ, Fac Sci, Phys Dept, Damanhour, Egypt
[3] Alexandria Univ, Fac Sci, Math Dept, Alexandria, Egypt
来源
JOURNAL OF PHYSICS COMMUNICATIONS | 2018年 / 2卷 / 08期
关键词
dynamical symmetry; interacting boson model; quasi-spin algebras; pairing interactions;
D O I
10.1088/2399-6528/aad064
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A simple systematic procedure to construct the three-level unitary and orthogonal algebras which appear in the bosonic three -level pairing models and for arbitrary choice of level degeneracies is presented. We draw attention to the existence of the three types of dynamical symmetry. The new analytical expressions of the energies are derived. The results presented show very clearly the duality between orthogonal algebras and the quasi-spin algebras for the three-level system with pairing interactions. The seniority selection rules of the transition operators in three level boson system are given. Illustrative calculations are carried out for U-21 algebra.
引用
收藏
页数:11
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