Mott-insulator phase of coupled one-dimensional atomic gases in a two-dimensional optical lattice

被引：10

作者：

Gangardt, DM

Pedri, P

Santos, L

Shlyapnikov, GV

机构：

[1] Univ Paris 11, Lab Phys Theor & Modeles Stat, F-91405 Orsay, France

[2] Univ Stuttgart, Inst Theoret Phys 3, D-70550 Stuttgart, Germany

[3] Univ Hannover, Inst Theoret Phys, D-30167 Hannover, Germany

[4] Univ Trent, Dipartimento Fis, I-38050 Trento, Italy

[5] INFM, BEC, I-38050 Trento, Italy

[6] Univ Amsterdam, Zeeman Inst, NL-1018 XE Amsterdam, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.96.040403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider the 2D Mott-insulator state of a 2D array of coupled finite size 1D Bose gases. It is shown that the momentum distribution in the lattice plane is very sensitive to the interaction regime in the 1D tubes. In particular, we find that the disappearance of the interference pattern in time-of-flight experiments is a clear consequence of the strongly interacting Tonks-Girardeau regime along the tubes.

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页数：4

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