論文

査読有り
2013年10月

Reentrant topological transitions with Majorana end states in one-dimensional superconductors by lattice modulation

PHYSICAL REVIEW B
  • Masaki Tezuka
  • ,
  • Norio Kawakami

88
15
開始ページ
155428
終了ページ
155428
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevB.88.155428
出版者・発行元
AMER PHYSICAL SOC

The possibility to observe and manipulate Majorana fermions as end states of one-dimensional topological superconductors has been actively discussed recently. In a quantum wire with strong spin-orbit coupling placed in proximity to a bulk superconductor, a topological superconductor has been expected to be realized when the band energy is split by the application of a magnetic field. When a periodic lattice modulation is applied, multiple topological superconductor phases appear in the phase diagram. Some of them occur for higher filling factors compared to the case without the modulation. We study the effects of phase jumps and argue that the topologically nontrivial state of the whole system is retained even if they are present. We also study the effect of the spatial modulation in the hopping parameter.

リンク情報
DOI
https://doi.org/10.1103/PhysRevB.88.155428
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000326087100011&DestApp=WOS_CPL
ID情報
  • DOI : 10.1103/PhysRevB.88.155428
  • ISSN : 1098-0121
  • eISSN : 1550-235X
  • Web of Science ID : WOS:000326087100011

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