Non-Abelian strings in high-density QCD: Zero modes and interactions

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書誌事項

公開日
2008-08-04
権利情報
  • http://link.aps.org/licenses/aps-default-license
DOI
  • 10.1103/physrevd.78.045002
  • 10.48550/arxiv.0708.4096
公開者
American Physical Society (APS)

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説明

The most fundamental strings in high density color superconductivity are the non-Abelian semi-superfluid strings which have color gauge flux tube but behave as superfluid vortices in the energetic point of view. We show that in addition to the usual translational zero modes, these vortices have normalizable orientational zero modes in the internal space, associated with the color-flavor locking symmetry broken in the presence of the strings. The interaction among two parallel non-Abelian semi-superfluid strings is derived for general relative orientational zero modes to show the universal repulsion. This implies that the previously known superfluid vortices, formed by spontaneously broken U(1)_B, are unstable to decay. Moreover, our result proves the stability of color superconductors in the presence of external color gauge fields.

13 pages, 1 figure

収録刊行物

  • Physical Review D

    Physical Review D 78 (4), 045002-, 2008-08-04

    American Physical Society (APS)

被引用文献 (61)*注記

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