Synthetic Gauge Fields in Synthetic Dimensions

被引：506

作者：

Celi, A. ^{[1
]}

Massignan, P. ^{[1
]}

Ruseckas, J. ^{[2
]}

Goldman, N. ^{[3
]}

Spielman, I. B. ^{[4
,5
]}

Juzeliunas, G. ^{[2
]}

Lewenstein, M. ^{[1
,6
]}

机构：

[1] ICFO Inst Ciencies Foton, E-08860 Castelldefels, Barcelona, Spain

[2] Vilnius State Univ, Inst Theoret Phys & Astron, LT-01108 Vilnius, Lithuania

[3] UPMC, ENS, CNRS, Lab Kastler Brossel, F-75005 Paris, France

[4] Univ Maryland, Joint Quantum Inst, College Pk, MD 20742 USA

[5] NIST, Gaithersburg, MD 20899 USA

[6] ICREA, E-08010 Barcelona, Spain

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 04期

基金：

美国国家科学基金会;

关键词：

TOPOLOGICAL EDGE STATES; MAGNETIC-FIELDS; OPTICAL LATTICES; DIRAC FERMIONS; POTENTIALS; ATOMS;

D O I：

10.1103/PhysRevLett.112.043001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We describe a simple technique for generating a cold-atom lattice pierced by a uniform magnetic field. Our method is to extend a one-dimensional optical lattice into the "dimension" provided by the internal atomic degrees of freedom, yielding a synthetic two-dimensional lattice. Suitable laser coupling between these internal states leads to a uniform magnetic flux within the two-dimensional lattice. We show that this setup reproduces the main features of magnetic lattice systems, such as the fractal Hofstadter-butterfly spectrum and the chiral edge states of the associated Chern insulating phases.

引用

页数：6

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