论文标题

零温度QCD的阶段和冷凝水在有限$μ_i$和$μ_s$中

Phases and condensates in zero-temperature QCD at finite $μ_I$ and $μ_S$

论文作者

Andersen, Jens O.

论文摘要

我讨论有限的等素化学势$μ_i$和奇怪的化学势$μ_s$在零温度下使用三味的手性手动扰动理论,QCD的相位的特性以及QCD阶段的特性。电磁效应包括在相图的计算中,这意味着带电的介子凝结相成为QCD的超导相,并通过HIGGS机制具有巨大的光子。没有电磁效应,我们在低能扩张中近代领先(NLO)订单时将光夸克冷凝物和斜凝液显示为$μ_i$的功能。将结果与最近的晶格模拟进行了比较,并且通过包括NLO校正,人们获得了很好的一致性。

I discuss pion and koan condensation and the the properties of the phases of QCD at finite isospin chemical potential $μ_I$ and strangeness chemical potential $μ_S$ at zero temperature using three-flavor chiral perturbation theory. Electromagnetic effects are included in the calculation of the phase diagram, which implies that the charged meson condensed phases become superconducting phases of QCD with a massive photon via the Higgs mechanism. Without electromagnetic effects, we show results for the light quark condensate and the pion condensate as functions of $μ_I$ at next-to-leading (NLO) order in the low-energy expansion. The results are compared with recent lattice simulations and by including the NLO corrections, one obtains very good agreement.

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