Relation between the E(5) symmetry and the interacting boson model beyond the mean-field approximation

摘要：

In a unified algebraic scheme, we investigate the relation between the E(5) symmetry and the interacting boson model beyond the mean-field level. The results indicate that the E(5) symmetry is actually in between the critical point of the U(5)-O (6) transition and the O(6) limit but it is fairly close to the former based on the phase diagram of the interacting boson model at the large boson number limit. In addition, an algebraic Hamiltonian of the E (5)-β model is proposed.

关键词： quantum phase transition critical point E(5) symmetry nuclear structure

作者: ZHANG Yu LIU YuXin HOU ZhanFeng SUN Yang

作者单位: Department of Physics, Liaoning Normal University, Dalian 116029, China Department of Physics and the National Key Laboratory of Nuclear Physics and Technology, Peking Univ Department of Physics and the National Key Laboratory of Nuclear Physics and Technology, Peking Univ Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China

会议类型: 国际会议

会议名称: 原子核磁矩国际研讨会

会议地点: 北京

会议语种:英文

页码: 227-230

在线出版日期: 2010-04-27（万方平台首次上网日期，不代表论文的发表时间）