Surface Majorana cone of the topological superfluid 3He B phase

Ryuji Nomura, Satoshi Murakawa, Masahiro Wasai, Kouki Akiyama, Takeru Nakao, Yuichi Okuda

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Topological superfluids and superconductors have been theoretically proposed, and it is now necessary to experimentally confirm their existence. Superfluid 3He should be the ideal test subject for topological theories because its bulk state is established to be that of a spin-triplet p-wave superfluid. Surface Andreev bound states of superfluid 3He were investigated by transverse acoustic impedance measurements and their linear dispersion was confirmed on a highly specular wall. The superfluid 3He B phase was found to be a topological superfluid showing bulk-edge correspondence and a surface Majorana cone was confirmed on the surface. Possible manifestations of the Majorana nature of the surface states are discussed.

Original languageEnglish
Pages (from-to)42-47
Number of pages6
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume55
DOIs
Publication statusPublished - 2014 Jan 1

Keywords

  • Andreev bound state
  • Majorana cone
  • Majorana fermion
  • Superfluid He
  • Topological superfluid

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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