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arXiv 0708.4096hep-phastro-phcond-mat.supr-conhep-thnucl-th
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高密度QCD中的非阿贝尔弦:零模和相互作用

Non-Abelian Strings in High Density QCD: Zero Modes and Interactions

Eiji Nakano, Muneto Nitta, Taeko Matsuura

摘要:

高密度色超导中最基本的弦是非阿贝尔半超流弦,它具有色规通量管,但在能量上表现为超流涡旋。我们发现,除了通常的平移零模式,这些涡旋具有归一化的取向零模式在内部空间中,与色味锁定对称性破缺的弦的存在。推导了两平行非阿贝尔半超流弦在一般相对取向零模情况下的相互作用,以显示普遍排斥。这意味着由自发破裂的U(1)B形成的超流涡旋是不稳定的。此外,我们的结果证明了色超导体在外部色规范场存在下的稳定性。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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