Spin-Orbit Coupling and Quantum Spin Hall Effect for Neutral Atoms without Spin Flips

被引：127

作者：

Kennedy, Colin J. ^{[1
]}

Siviloglou, Georgios A. ^{[1
]}

Miyake, Hirokazu ^{[1
]}

Burton, William Cody ^{[1
]}

Ketterle, Wolfgang ^{[1
]}

机构：

[1] MIT, Dept Phys, Elect Res Lab, MIT Harvard Ctr Ultracold Atoms, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 22期

基金：

美国国家科学基金会;

关键词：

ELECTRONS;

D O I：

10.1103/PhysRevLett.111.225301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose a scheme which realizes spin-orbit coupling and the quantum spin Hall effect for neutral atoms in optical lattices without relying on near resonant laser light to couple different spin states. The spin-orbit coupling is created by modifying the motion of atoms in a spin-dependent way by laser recoil. The spin selectivity is provided by Zeeman shifts created with a magnetic field gradient. Alternatively, a quantum spin Hall Hamiltonian can be created by all-optical means using a period-tripling, spin-dependent superlattice.

引用

页数：5

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