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Liu, XL; Wang, ZQ; Xie, XC; Yu, Y; Yu, Y (reprint author), Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
Abelian and non-Abelian anyons in integer quantum anomalous Hall effect and topological phase transitions via superconducting proximity effect
发表期刊PHYSICAL REVIEW B
语种英语
关键词Insulators Parity Nu=1/2 States Wells
摘要We study the quantum anomalous Hall effect described by a class of two-component Haldane models on square lattices. We show that the latter can be transformed into a pseudospin triplet p + ip-wave paired superfluid. In the long wavelength limit, the ground-statewave function is described by Halperin's ( 1,1,-1) state of neutral fermions analogous to the double-layer quantum Hall effect. The vortex excitations are charge e/2 Abelian anyons which carry a neutral Dirac fermion zero mode. The superconducting proximity effect induces "tunneling" between "layers" which leads to topological phase transitions whereby the Dirac fermion zero mode fractionalizes and Majorana fermions emerge in the edge states. The charge e/2 vortex excitation carrying a Majorana zero mode is a non-Abelian anyon. The proximity effect can also drive a conventional insulator into a quantum anomalous Hall effect state with a Majorana edge mode and the non-Abelian vortex excitations.
2011
ISSN1098-0121
卷号83期号:12页码:125105
学科领域Physics
收录类别SCI
项目资助者National Natural Science Foundation of China; MOST of China; Key Lab of Frontiers in Theoretical Physics of CAS; DOE [DE-FG02-99ER45747, DE-FG02-04ER46124]; NSF [DMR-0704545] ; National Natural Science Foundation of China; MOST of China; Key Lab of Frontiers in Theoretical Physics of CAS; DOE [DE-FG02-99ER45747, DE-FG02-04ER46124]; NSF [DMR-0704545] ; National Natural Science Foundation of China; MOST of China; Key Lab of Frontiers in Theoretical Physics of CAS; DOE [DE-FG02-99ER45747, DE-FG02-04ER46124]; NSF [DMR-0704545] ; National Natural Science Foundation of China; MOST of China; Key Lab of Frontiers in Theoretical Physics of CAS; DOE [DE-FG02-99ER45747, DE-FG02-04ER46124]; NSF [DMR-0704545]
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被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14391
专题理论物理所科研产出_SCI论文
通讯作者Yu, Y (reprint author), Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
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Liu, XL,Wang, ZQ,Xie, XC,et al. Abelian and non-Abelian anyons in integer quantum anomalous Hall effect and topological phase transitions via superconducting proximity effect[J]. PHYSICAL REVIEW B,2011,83(12):125105.
APA Liu, XL,Wang, ZQ,Xie, XC,Yu, Y,&Yu, Y .(2011).Abelian and non-Abelian anyons in integer quantum anomalous Hall effect and topological phase transitions via superconducting proximity effect.PHYSICAL REVIEW B,83(12),125105.
MLA Liu, XL,et al."Abelian and non-Abelian anyons in integer quantum anomalous Hall effect and topological phase transitions via superconducting proximity effect".PHYSICAL REVIEW B 83.12(2011):125105.
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