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

Author(s)
Miyake, Hirokazu; Burton, William Cody; Ketterle, Wolfgang; Kennedy, Colin; Siviloglou, Georgios A.
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Abstract
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.
Date issued
2013-11
URI
http://hdl.handle.net/1721.1/85212
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Research Laboratory of Electronics; MIT-Harvard Center for Ultracold Atoms
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Kennedy, Colin J., Georgios A. Siviloglou, Hirokazu Miyake, William Cody Burton, and Wolfgang Ketterle. “Spin-Orbit Coupling and Quantum Spin Hall Effect for Neutral Atoms Without Spin Flips.” Physical Review Letters 111, no. 22 (November 2013). © 2013 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114
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