Distribution of stress tensor around static quark-anti-quark from Yang-Mills gradient flow
Distribution of stress tensor around static quark-anti-quark from Yang-Mills gradient flow
复制标题
杨-米尔斯梯度流静态夸克-反夸克周围应力张量的分布
DOI：
10.1016/j.physletb.2018.09.067
复制
发表时间：
2019
影响因子：
4.4
通讯作者：
Hatsuda Tetsuo
中科院分区：
文献类型：
--
作者：
Yanagihara Ryosuke;Iritani Takumi;Kitazawa Masakiyo;Asakawa Masayuki;Hatsuda Tetsuo
研究了SU(3)格点规范理论中夸克-反夸克(Q Q‘)对周围应力张量的空间分布。杨-Mills梯度流对于使应力张量在晶格上的数值模拟中定义明确和可导出起着至关重要的作用。分解成局部主轴的应力张量第一次以规范不变的方式显示了通量管沿纵向和横向的详细结构。QQ势在远距离的线性约束行为直接由局部应力张量的积分得到。
The spatial distribution of the stress tensor around the quark–anti-quark (Q Q¯) pair in SU (3) lattice gauge theory is studied. The Yang–Mills gradient flow plays a crucial role to make the stress tensor well-defined and derivable from the numerical simulations on the lattice. The resultant stress tensor with a decomposition into local principal axes shows, for the first time, the detailed structure of the flux tube along the longitudinal and transverse directions in a gauge invariant manner. The linear confining behavior of the Q Q¯ potential at long distances is derived directly from the integral of the local stress tensor.