标题： 高度各向异性的晶格用于杨-米尔斯理论 显示英文标题

标题： Highly anisotropic lattices for Yang-Mills theory

摘要： 在本次会议记录中，我们研究了物理各向异性与SU(2)纯规范理论的裸参数相关的时空格点间距。各向异性晶格具有广泛的应用范围，从QCD中的热力学计算到最近使用复朗之万方法进行的实时模拟。 我们发现裸各向异性和重整化各向异性之间存在几乎线性的关系。 通过采用一种包括非线性效应且之前为SU(3)理论提出的参数化方法，我们仅用两个拟合参数就获得了对各向异性耦合依赖性的良好描述。 我们观察到的近似线性关系和这种参数化方法应该会大大减少未来各向异性晶格计算的计算工作量。 显示英文摘要

摘要： In this conference proceeding, we investigate the physical anisotropy in terms of the temporal and spatial lattice spacings in relation to the bare parameters of SU(2) pure gauge theory using Wilson gradient flow. Anisotropic lattices have a wide range of applications, from thermodynamic calculations in QCD to very recent real-time simulations using the complex Langevin method. We find an almost linear relationship between the bare and renormalized anisotropy. Using a parametrization that includes nonlinear effects and was earlier proposed for SU(3) theory, we obtain a good description of the coupling dependence of the anisotropy with only two fitting parameters. Our observation of an approximately linear relationship and this parametrization should strongly reduce the computational effort of anisotropic lattice calculations in the future.