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arXiv 1709.03326hep-phhep-lat
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QCD的夸克传播子和类QCD理论

The quark propagators of QCD and QCD-like theories

Romain Contant, Markus Q. Huber

摘要:

我们研究了与QCD不同的理论的相结构,这些理论只在规范群上不同,并且可以在非零化学势$μ$的晶格上模拟。因此,这些理论可以作为非零密度函数方法的试验场。我们确定了三个规范群$SU(3)$,$SU(2)$和$G_2$在$μ=0$的手征跃迁和禁闭/解除禁闭跃迁,并将手征跃迁的研究扩展到非零$μ$ .我们定位的临界点,手征交叉成为一个真正的相变。在所采用的截断,我们发现,所有三个理论的行为定性非常相似。

英文摘要:

We investigate the phase structures of theories which differ from QCD only in the gauge group and can be simulated on the lattice at non-vanishing chemical potential $μ$. These theories can thus serve as testing ground for functional methods at non-vanishing density. We determine the chiral and confinement/deconfinement transitions at $μ=0$ for the three gauge groups $SU(3)$, $SU(2)$ and $G_2$ for two quark flavors and extend the study of the chiral transition to non-zero $μ$. We locate the critical point where the chiral crossover becomes a real phase transition. Within the employed truncation, we find that all three theories behave qualitatively very similarly.

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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