论文标题
用两点函数探测磁线缺陷
Probing magnetic line defects with two-point functions
论文作者
论文摘要
本文研究Wilson-Fisher $ O（N）$模型中的磁性线缺陷。探测系统的一种强大方法是在存在缺陷的情况下考虑顺序参数的混合两点函数和能量操作员。最近开发的分散关系使我们能够引导这些混合的相关器以$ε$ - expansion的领先顺序。我们还执行明确的图解计算，与引导程序找到完美的一致性，并得出结论提取由两点函数预测的新的CFT数据。
This paper studies magnetic line defects in the Wilson-Fisher $O(N)$ model. A powerful method to probe the system is to consider mixed two-point functions of the order parameter and the energy operator in the presence of the defect. A recently developed dispersion relation allows us to bootstrap these mixed correlators to leading order in the $ε$-expansion. We also carry out explicit diagrammatic calculations, finding perfect agreement with the bootstrap, and we conclude extracting the new CFT data predicted by the two-point functions.
