Realistic Time-Reversal Invariant Topological Insulators with Neutral Atoms

被引：274

作者：

Goldman, N. ^{[1
]}

Satija, I. ^{[2
]}

Nikolic, P. ^{[2
]}

Bermudez, A. ^{[3
]}

Martin-Delgado, M. A. ^{[3
]}

Lewenstein, M. ^{[4
,5
]}

Spielman, I. B. ^{[6
,7
]}

机构：

[1] Univ Libre Brussels, Ctr Nonlinear Phenomena & Complex Syst, B-1050 Brussels, Belgium

[2] George Mason Univ, Dept Phys, Fairfax, VA 22030 USA

[3] Univ Complutense, Dept Fis Teor 1, E-28040 Madrid, Spain

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

[5] ICREA Inst Catalana Recerca & Estudis Avancats, E-08010 Barcelona, Spain

[6] NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA

[7] Univ Maryland, Gaithersburg, MD 20899 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 25期

关键词：

MAGNETIC-FIELDS;

D O I：

10.1103/PhysRevLett.105.255302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We lay out an experiment to realize time-reversal invariant topological insulators in alkali atomic gases. We introduce an original method to synthesize a gauge field in the near field of an atom chip, which effectively mimics the effects of spin-orbit coupling and produces quantum spin-Hall states. We also propose a feasible scheme to engineer sharp boundaries where the hallmark edge states are localized. Our multiband system has a large parameter space exhibiting a variety of quantum phase transitions between topological and normal insulating phases. Because of their remarkable versatility, cold-atom systems are ideally suited to realize topological states of matter and drive the development of topological quantum computing.

引用

页数：4

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