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Zhou, Longwen1
Non-Hermitian Floquet topological superconductors with multiple Majorana edge modes
Source PublicationPHYSICAL REVIEW B
AbstractMajorana edge modes are candidate elements of topological quantum computing. In this paper, we propose a Floquet engineering approach to generate multiple non-Hermitian Majorana zero and pi modes at the edges of a one-dimensional topological superconductor. Focusing on a Kitaev chain with periodically kicked superconducting pairings and gain/losses in the chemical potential or nearest-neighbor hopping terms, we found rich non-Hermitian Floquet topological superconducting phases, which are originated from the interplay between drivings and non-Hermitian effects. Each of the phases is characterized by a pair of topological winding numbers, which can in principle take arbitrarily large integer values thanks to the applied driving fields. Under the open boundary condition, these winding numbers also predict the number of degenerate Majorana edge modes with quasienergies zero and pi. Our findings thus expand the family of Floquet topological phases in non-Hermitian settings, with potential applications in realizing environmentally robust Floquet topological quantum computations.
Cooperation Status国内
Subject AreaMaterials Science ; Physics
MOST Discipline CatalogueMaterials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
Indexed BySCIE
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Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Ocean Univ China, Coll Informat Sci & Engn, Dept Phys, Qingdao 266100, Peoples R China
2.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Longwen. Non-Hermitian Floquet topological superconductors with multiple Majorana edge modes[J]. PHYSICAL REVIEW B,2020,101(1):14306.
APA Zhou, Longwen.(2020).Non-Hermitian Floquet topological superconductors with multiple Majorana edge modes.PHYSICAL REVIEW B,101(1),14306.
MLA Zhou, Longwen."Non-Hermitian Floquet topological superconductors with multiple Majorana edge modes".PHYSICAL REVIEW B 101.1(2020):14306.
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