Non-Abelian quasigapless modes localized on mass vortices in superfluid He3-B

Muneto Nitta, Mikhail Shifman, Walter Vinci

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Kelvin waves, or Kelvons, have been known for a long time as gapless excitations propagating along superfluid vortices. These modes can be interpreted as the Nambu-Goldstone excitations arising from the spontaneous breaking of the translational symmetry. Recently a different type of gapless excitation localized on strings - the so-called non-Abelian mode - attracted much attention in high-energy physics. We discuss their relevance in condensed matter physics. Non-Abelian rotational quasigapless excitations could appear on the mass vortices in the B phase of the superfluid He3, due to the fact that the order parameter in He3-B is tensorial. While the U(1) rotational excitations are well established in vortices with asymmetric cores, the non-Abelian rotational excitations belonging to the same family were not considered.

Original languageEnglish
Article number081702
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume87
Issue number8
DOIs
Publication statusPublished - 2013 Apr 25

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vortices
excitation
Kelvin waves
condensed matter physics
strings
physics
symmetry
energy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Non-Abelian quasigapless modes localized on mass vortices in superfluid He3-B. / Nitta, Muneto; Shifman, Mikhail; Vinci, Walter.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 87, No. 8, 081702, 25.04.2013.

Research output: Contribution to journalArticle

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