Domain walls in high-T SU(N) super Yang-Mills theory and QCD(adj)

Domain walls in high-T SU(N) super Yang-Mills theory and QCD(adj)
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高 T SU(N) 超杨米尔斯理论和 QCD(adj) 中的畴壁

DOI:
10.1007/jhep05(2019)151
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发表时间:
2019
影响因子:
5.4
通讯作者:
Poppitz, Erich
Poppitz, Erich
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Anber, Mohamed M.;Poppitz, Erich

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我们研究了热四维SU(N)超Yang-Mills理论和QCD(adj)中的畴壁,研究了n-f-Weyl味.我们发现k壁世界体积理论是二维QCD,规范群SU(N-k)× SU(k)× U(1),Dirac费米子荷在U(1)之下,并在非交换因子的双基本表示中变换。我们表明,DW理论具有1-形式的N(1)N中心对称性和0-形式的离散手征对称性,与混合的t Hooft异常一致的体/壁异常流入。我们证明了Wilson(1)N在墙上是断开的,因此Wilson环服从周长律.世界体积中心对称性的破缺意味着大体积p弦可以终止于壁面,这一现象首先是用弦理论构造发现的。我们引用2-D玻色化和规范Wess-Zumino-维滕模型来说明在IR中f也是破缺的,这意味着在带隙k-壁理论中的0-形式/1-形式混合t Hooft反常被拓扑量子场论所饱和.我们还发现有趣的相似之处的物理高温畴壁研究这里和畴壁之间的手征对称性破缺真空在零温度阶段的理论(研究早期的半经典可计算的小空间圆制度),所产生的类似模式的饱和相关的't Hooft异常。
We study the domain walls in hot 4-D SU (N) super Yang-Mills theory and QCD (adj), with n f Weyl flavors. We find that the k-wall worldvolume theory is 2-D QCD with gauge group SU (N− k)× SU (k)× U (1) and Dirac fermions charged under U (1) and transforming in the bi-fundamental representation of the nonabelian factors. We show that the DW theory has a 1-form ℤ (1) N center symmetry and a 0-formdiscrete chiral symmetry, with a mixed’t Hooft anomaly consistent with bulk/wall anomaly inflow. We argue that ℤ (1) N is broken on the wall, and hence, Wilson loops obey the perimeter law. The breaking of the worldvolume center symmetry implies that bulk p-strings can end on the wall, a phenomenon first discovered using string-theoretic constructions. We invoke 2-D bosonization and gauged Wess-Zumino-Witten models to suggest thatis also broken f in the IR, which implies that the 0-form/1-form mixed’t Hooft anomaly in the gapped k-wall theory is saturated by a topological quantum field theory. We also find interesting parallels between the physics of high-temperature domain walls studied here and domain walls between chiral symmetry breaking vacua in the zero temperature phase of the theory (studied earlier in the semiclassically calculable small spatial circle regime), arising from the similar mode of saturation of the relevant’t Hooft anomalies.
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