Textures and exotic vortices in neutral fermion superfluids

K. Machida, Y. Tsutsumi, T. Kawakami, H. M. Adachi, J. A.M. Huhtamäki, T. Mizushima, M. Ichioka

Research output: Contribution to journalArticlepeer-review


There has been intense interest in various Fermion superfluids in neutral atom liquids and gases, including chiral p-wave pairing in 3He-A phase and Feshbach-resonanced 6Li atom gases and d-wave pairing in atom gases. It is particularly interesting to find exotic vortices and associated low-lying Fermionic excitations under rotation. Here we report on our efforts of those topics: (1) Majorana Fermion in chiral superfluids near a p-wave Feshbach resonance. (2) Possible half-quantum vortices in p-wave superfluids of trapped Fermion atom gases. (3) Stability of a half-quantum vortex in rotating superfluid 3He-A between parallel plates. (4) Majorana bound state in rotating superfluid 3He-A between parallel plates. (5) Non-Abelian Fractional vortex in d-wave Feshbach resonance superfluids. We will summarize some of those works in a coherent manner in order to bridge the understanding between cold atom community and superfluid 3He community by stressing the importance of cross fertilization between them.

Original languageEnglish
Pages (from-to)377-383
Number of pages7
JournalJournal of Low Temperature Physics
Issue number3-4
Publication statusPublished - Feb 1 2010


  • D-wave pairing
  • Fractional vortex
  • Majorana particle
  • P-wave pairing
  • Superfluid He-A

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics


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