Excitation spectrum of spin-1 bosonic atoms in Mott insulating phase

被引:0
|
作者
Hou, JM [1 ]
Tian, LJ
机构
[1] SE Univ, Dept Phys, Nanjing 210096, Peoples R China
[2] Nankai Univ, Div Theoret Phys, Nankai Inst Math, Tianjin 300071, Peoples R China
[3] Shanghai Univ, Dept Phys, Shanghai 200436, Peoples R China
关键词
collective excitations; optical lattice; Mott-insulating phase; spinor atoms;
D O I
暂无
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The effective action for spin-1 bosonic atom in an optical lattice is derived. The quasiparticle and quasihole dispersions are calculated for different cases by using a functional integral formalism, For all cases, the excitation spectra are analyzed. All the quasiparticle and quasihole excitations start with a gap.
引用
收藏
页码:87 / 94
页数:8
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