Domain walls and vortices in chiral symmetry breaking

Minoru Eto, Yuji Hirono, Muneto Nitta

研究成果: Article査読

17 被引用数 (Scopus)

抄録

We study domain walls and vortices in chiral symmetry breaking in a quantum chromodynamic (QCD)-like theory with N flavors in the chiral limit. If the axial anomaly is absent, there exist stable Abelian axial vortices winding around the spontaneously broken U(1)A symmetry and non-Abelian axial vortices winding around both the U(1)A and non-Abelian SU(N) chiral symmetries. In the presence of the axial anomaly term, metastable domain walls are present and Abelian axial vortices must be attached by N domain walls, forming domain wall junctions.We show that a domain wall junction decays into N non-Abelian vortices attached by domain walls, implying its metastability.We also show that domain walls decay through quantum tunneling by creating a hole bounded by a closed non-Abelian vortex.

本文言語English
論文番号033B01
ジャーナルProgress of Theoretical and Experimental Physics
2014
3
DOI
出版ステータスPublished - 2014 3

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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