Cold atoms in non-Abelian gauge potentials: From the Hofstadter "Moth" to lattice gauge theory

被引：379

作者：

Osterloh, K ^{[1
]}

Baig, M

Santos, L

Zoller, P

Lewenstein, M

机构：

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

[2] Univ Autonoma Barcelona, IFAE, Bellaterra, Barcelona, Spain

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

[4] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria

[5] ICFO, Inst Ciencies Foton, Barcelona 08034, Spain

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.95.010403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate how to create artificial external non-Abelian gauge potentials acting on cold atoms in optical lattices. The method employs atoms with k internal states, and laser assisted state sensitive tunneling, described by unitary kxk matrices. The single-particle dynamics in the case of intense U(2) vector potentials lead to a generalized Hofstadter butterfly spectrum which shows a complex mothlike structure. We discuss the possibility to realize non-Abelian interferometry (Aharonov-Bohm effect) and to study many-body dynamics of ultracold matter in external lattice gauge fields.

引用

页数：4

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