Color-selective Mott transition and color superfluid of three-component fermionic atoms with repulsive interaction in optical lattices

被引：5
|
作者：
Miyatake, Shinya [2 ]
Inaba, Kensuke [3 ,4 ]
Suga, Sei-ichiro [1 ,2 ]
机构：
[1] Univ Hyogo, Dept Mat Sci & Chem, Himeji, Hyogo 6712280, Japan
[2] Osaka Univ, Dept Appl Phys, Suita, Osaka 5650871, Japan
[3] NTT Corp, NTT Basic Res Labs, Atsugi, Kanagawa 2430198, Japan
[4] CREST, JST, Chiyoda Ku, Tokyo 1020075, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2010年 / 470卷
关键词：
Three-component cold fermionic atoms; Repulsive interaction; Color-selective Mott transition; Color superfluid;
D O I：
10.1016/j.physc.2009.11.162
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We investigate quantum phase transitions of three-component (colors) repulsive fermionic atoms in optical lattices, using dynamical mean field theory. For the isotropic interaction system, a Mott transition occurs at commensurate 1/3 and 2/3 fillings, while the system remains a Fermi liquid at incommensurate other filling. For the anisotropic interaction system, we find that at half-filling there occur a color-selective Mott transition and a color superfluid transition driven by the repulsive interaction. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：S916 / S918
页数：3
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