Exact solutions of an SO(5)-invariant spin-(3/2) Fermi gas model

被引：13
|
作者：
Jiang, Yuzhu [1 ]
Cao, Junpeng [1 ]
Wang, Yupeng [1 ]
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
来源：
EPL | 2009年 / 87卷 / 01期
关键词：
BOSE; STATE;
D O I：
10.1209/0295-5075/87/10006
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
An exactly solvable model describing the dilute spin-(3/2) fermion gas in one-dimensional optical trap is proposed. The diagonalization of the model Hamiltonian is derived by means of the Bethe ansatz method. Exotic spin excitations such as the heavy spinon with fractional spin 3/2, the neutral spinon with spin zero and the dressed spinon with spin 1/2 are found basing on the exact solution. Copyright (C) EPLA, 2009
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