论文标题
阳米斯理论中具有边界作用的字符串的量子定位
Quantum delocalization of strings with boundary action in Yang-Mills theory
论文作者
论文摘要
在自由nambu-goto近似之外的有效弦模型中研究了QCD字符串的量子离域的宽度。除了（NG）字符串动作中的两个循环顺序相等，我们考虑了Lüscher-Weisz String Action中的两个Lorentzian-Invariant边界界面。认识到QCD字符串可能刚性的几何术语也经过审查。我们对4-二键纯$ su（3）$ yang-mills晶格量规理论进行了数值分析，该理论在两个温度尺度附近。使用此QCD字符串模型的比较研究针对静态夸克 - 易夸克系统的颜色源分隔的宽度$ 0.5 \ le r \ le \ le \ le 1.2 $ fm。我们发现，边界作用的刚度特性和对称效应包括在此距离上与QCD通量管的Mont-Carlo Data的曲线相匹配。
The width of the quantum delocalization of the QCD strings is investigated in effective string models beyond free Nambu-Goto approximation. We consider two Lorentzian-invariant boundary-terms in the Lüscher-Weisz string action in addition to self-interaction term equivalent to two loop order in the (NG) string action. The geometrical terms which realize the possible rigidity of the QCD string is scrutinized as well. We perform the numerical analysis on the 4-dim pure $SU(3)$ Yang-Mills lattice gauge theory at two temperature scales near deconfinement point. The comparative study with this QCD string model targets the width of the energy profile of a static quark-antiquark system for color sources separation $0.5 \le R \le 1.2$ fm. We find the inclusion of rigidity properties and symmetry effects of the boundary action into the string paradigm to reproduce a good match with the profile of the Mont-Carlo data of QCD flux-tube on this distance scale.
