论文标题
QCD $ {} _ 4 $中的接口连接
Interface Junctions in QCD${}_4$
论文作者
论文摘要
我们研究3+1尺寸$ su（n）$量子染色体动力学（QCD），其中$ n_f $ deNerate Quarks具有空间变化的复合物质量。它导致通过接口连接连接的接口网络。我们使用异常流入来限制这些缺陷。基于手性Lagrangian和界面上的猜想，其特征在于空间变化的$θ$ - 参数，我们提出了此类接口网络的低能描述。有趣的是，我们观察到，在交界处的有效领域理论中的操作员可以携带重子指控，其旋转和同义代表与Baryons一致。我们还研究了以空间变化的耦合常数为特征的缺陷，以2+1维的Chern-Simons-Matter理论和3+1维真实的标量理论为特征。
We study 3+1 dimensional $SU(N)$ Quantum Chromodynamics (QCD) with $N_f$ degenerate quarks that have a spatially varying complex mass. It leads to a network of interfaces connected by interface junctions. We use anomaly inflow to constrain these defects. Based on the chiral Lagrangian and the conjectures on the interfaces, characterized by a spatially varying $θ$-parameter, we propose a low-energy description of such networks of interfaces. Interestingly, we observe that the operators in the effective field theories on the junctions can carry baryon charges, and their spin and isospin representations coincide with baryons. We also study defects, characterized by spatially varying coupling constants, in 2+1 dimensional Chern-Simons-matter theories and in a 3+1 dimensional real scalar theory.
