期刊
PHYSICAL REVIEW LETTERS
卷 111, 期 22, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.111.225301
关键词
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资金
- NSF through the Center of Ultracold Atoms
- NSF [PHY-0969731]
- NSF under ARO [W911NF-13-1-0031]
- DARPA OLE program
- ONR
- National Science Foundation [PHYS-1066293]
- Direct For Mathematical & Physical Scien
- Division Of Physics [0969731, 1125846] Funding Source: National Science Foundation
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.
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