Trapping and Cooling Fermionic Atoms into Mott and Neel States

被引：47

作者：

De Leo, Lorenzo ^{[1
]}

Kollath, Corinna ^{[1
]}

Georges, Antoine ^{[1
]}

Ferrero, Michel ^{[1
]}

Parcollet, Olivier ^{[2
]}

机构：

[1] Ecole Polytech, CNRS, Ctr Phys Theor, F-91128 Palaiseau, France

[2] CEA Saclay, CNRS, URA 2306, DSM,IPhT,Inst Phys Theor, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.101.210403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We perform a theoretical study of a fermionic gas with two hyperfine states confined to an optical lattice. We derive a generic state diagram as a function of interaction strength, particle number, and confining potential. We discuss the central density, the double occupancy, and their derivatives as probes for the Mott state, connecting our findings to the recent experiment of Jordens et al. [Nature (London) 455, 204 (2008)]. Using entropic arguments we compare two different strategies to reach the antiferromagnetic state in the presence of a trapping potential.

引用

页数：4

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