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|a Chen, Chui-Zhen
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|a Massachusetts Institute of Technology. Department of Physics
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|a Lee, Patrick A
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|a Xie, Ying-Ming
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|a Liu, Jie
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|a Law, K. T.
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|a Lee, Patrick A
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|a Quasi-one-dimensional quantum anomalous Hall systems as new platforms for scalable topological quantum computation
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|b American Physical Society,
|c 2018-03-29T17:14:13Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/114445
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|a Quantum anomalous Hall insulator/superconductor heterostructures emerged as a competitive platform to realize topological superconductors with chiral Majorana edge states as shown in recent experiments [He et al. Science 357, 294 (2017)]. However, chiral Majorana modes, being extended, cannot be used for topological quantum computation. In this work, we show that quasi-one-dimensional quantum anomalous Hall structures exhibit a large topological regime (much larger than the two-dimensional case) which supports localized Majorana zero energy modes. The non-Abelian properties of a cross-shaped quantum anomalous Hall junction is shown explicitly by time-dependent calculations. We believe that the proposed quasi-one-dimensional quantum anomalous Hall structures can be easily fabricated for scalable topological quantum computation.
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|a United States. Department of Energy (Grant FG02-03 ER46076)
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|a Article
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|t Physical Review B
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