SU(3)中扭曲梯度流运行耦合的非微扰确定

E. I. Bribián, M. G. Pérez, A. Ramos
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引用次数: 5

摘要

我们报告了我们正在进行的在特定设置下的扭曲't Hooft运行耦合的非摄动计算的一些初步结果,使用梯度流来定义耦合并使用阶跃缩放技术来计算它。在计算中,我们考虑了四维纯规范SU(3)理论,该理论定义在单平面上具有扭曲边界条件的不对称环面上的晶格上,并将耦合的能量尺度与环面大小和规范群秩相结合的有效尺寸联系起来。此外,我们还探讨了拓扑冻结对耦合计算的一些影响。
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The twisted gradient flow running coupling in SU(3): a non-perturbative determination
We report some preliminary results of our ongoing non-perturbative computation of the twisted 't Hooft running coupling in a particular set-up, using the gradient flow to define the coupling and step scaling techniques to compute it. For the computation we considered a pure gauge SU(3) theory in four dimensions, defined on the lattice on an asymmetrical torus endowed with twisted boundary conditions in a single plane, and related the energy scale of the coupling to an effective size combining the size of the torus and the rank of the gauge group. Additionally, we explore some of the effects of the freezing of the topology on the computation of the coupling.
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