Non-Abelian half-quantum vortices in 3P2 topological superfluids

Yusuke Masaki, Takeshi Mizushima, Muneto Nitta

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

3P2 superfluids realized in neutron stars are the largest topological quantum matters in our universe. We establish the existence and stability of non-Abelian half-quantum vortices (HQVs) in 3P2 superfluids with strong magnetic fields. Using a self-consistent microscopic approach, we find that a singly quantized vortex is energetically destabilized into a pair of two non-Abelian HQVs owing to the strongly spin-orbit-coupled pairing. We find a topologically protected Majorana fermion on each HQV, thereby providing twofold non-Abelian anyons characterized by both Majorana fermions and a non-Abelian first homotopy group.

Original languageEnglish
Article numberL220503
JournalPhysical Review B
Volume105
Issue number22
DOIs
Publication statusPublished - 2022 Jun 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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