Strong anomaly and phases of chiral gauge theories
Strong anomaly and phases of chiral gauge theories
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手性规范理论的强异常和相
DOI：
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发表时间：
2021
影响因子：
5.4
通讯作者：
Andrea Luzio
中科院分区：
文献类型：
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作者：
S. Bolognesi;K. Konishi;Andrea Luzio
我们提出了一个简单的论点，当应用于一大类强耦合手性规范理论时，它似乎支持以某些双费米子凝聚为特征的动态希格斯相场景。由一组类重子无质量复合费米子在红外中描述的味道对称约束真空使传统的“特霍夫特异常匹配方程饱和”，但似乎并不受欢迎。我们的基本标准是，利用假设红外理论中的低能自由度，应该可以写出一个强异常有效作用，类似于QCD中描述低能有效作用中U(1)A问题的解。我们还评论了一些众所周知的想法，例如这些手性规范理论背景下的互补性和大 N 平面优势。无质量 QCD 和手性规范理论之间的一些惊人的类比和对比似乎是从这次讨论中出现的。
We present a simple argument which seems to favor, when applied to a large class of strongly-coupled chiral gauge theories, a dynamical-Higgs-phase scenario, characterized by certain bifermion condensates. Flavor symmetric confining vacua described in the infrared by a set of baryonlike massless composite fermions saturating the conventional ’t Hooft anomaly matching equations, appear instead disfavored. Our basic criterion is that it should be possible to write a strong-anomaly effective action, analogous to the one used in QCD to describe the solution of the U(1)A problem in the low-energy effective action, by using the low-energy degrees of freedom in the hypothesized infrared theory. We also comment on some well-known ideas such as the complementarity and the large N planar dominance in the context of these chiral gauge theories. Some striking analogies and contrasts between the massless QCD and chiral gauge theories seem to emerge from this discussion.
利用梯度流研究热N=1超杨-米尔斯理论中的中心对称性和手性对称性实现
影响因子：
5
作者：
G. Bergner;C. L'opez;S. Piemonte
通讯作者：
S. Piemonte