标题： 弦破裂与单极子 显示英文标题

标题： String breaking and monopoles

摘要： 弦的破裂在 QCD 的 U(1)^{N-1} 阿贝尔有效理论中被讨论。 当预期出现屏蔽时，静态势在长程区域表现出平坦化，在中间区域表现出线性行为。 我们展示了为什么在 Polyakov 环关联函数中比在 Wilson 回路中更容易观察到屏蔽效应。 无需 Z(N) 图像即可解释伴随弦的破裂。 显示英文摘要

摘要： The string breaking is discussed in U(1)^{N-1} Abelian effective theories of QCD. When a screening is expected, the static potential shows a flattening in the long-range region and a linear behavior in the intermediate region. We show why the screening is better observed in the Polyakov-loop correlators than in the Wilson loops. The breaking of the adjoint string is explained without the Z(N) picture.