期刊
PHYSICAL REVIEW LETTERS
卷 105, 期 25, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.255302
关键词
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资金
- ONR [N00014-09-1-1025A, 70NANB7H6138]
- NIST
- ARO
- DARPA OLE
- NSF through the PFC at JQI
- ICREA Funding Source: Custom
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.
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