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Quark-Hadron Continuity beyond the Ginzburg-Landau Paradigm

机译:超越Ginzburg-Landau范式的Quark-Hadron连续性

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摘要

Quark-hadron continuity is a scenario in which hadronic matter is continuously connected to a color superconductor without phase transitions as the baryon chemical potential increases. This scenario is based on Landau's classification of phases, since they have the same symmetry breaking pattern. We address the question of whether this continuity is true as quantum phases of matter, which requires treatment beyond the Ginzburg-Landau description. To examine the topological nature of a color superconductor, we derive a dual effective theory for U(1) Nambu-Goldstone (NG) bosons and vortices of the color-flavor locked phase and discuss the fate of emergent higher-form symmetries. The theory has the form of a topological BF theory coupled to NG bosons, and fractional statistics of test quarks and vortices arise as a result of an emergent Z(3) two-form symmetry. We find that this symmetry cannot be spontaneously broken, indicating that quark-hadron continuity is still a consistent scenario.
机译:夸克-强子连续性是一种场景,其中随着重子化学势的增加,强子物质连续连接到彩色超导体而没有相变。此方案基于Landau的相分类,因为它们具有相同的对称破坏模式。我们解决了这个连续性在物质的量子相中是否正确的问题,这需要对Ginzburg-Landau进行描述之外的处理方法。若要检查颜色超导体的拓扑性质,我们导出了对U(1)Nambu-Goldstone(NG)玻色子和颜色风味锁定相的旋涡的双重有效理论,并讨论了出现的高形式对称性的命运。该理论具有结合NG玻色子的拓扑BF理论的形式,并且由于出现了Z(3)两种形式的对称性,出现了测试夸克和涡旋的分数统计。我们发现这种对称性不能自发地打破,这表明夸克-强子连续性仍然是一致的情况。

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  • 来源
    《Physical review letters》 |2019年第21期|212001.1-212001.6|共6页
  • 作者

    Hirono Yuji; Tanizaki Yuya;

  • 作者单位

    Asia Pacific Ctr Theoret Phys, Pohang 37673, South Korea|POSTECH, Dept Phys, Pohang 37673, South Korea;

    North Carolina State Univ, Dept Phys, Raleigh, NC 27607 USA|Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA;

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