arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0806.3124hep-lat
收藏

格点上的线性协变规范

Linear Covariant Gauges on the Lattice

Attilio Cucchieri, Axel Maas, Tereza Mendes

摘要:

线性协变规范,例如费曼规范,在微扰计算中非常有用。然而,它们的非微扰公式是非常重要的。特别是,它是一个挑战,以定义线性协变规范的晶格。我们考虑了格点规范理论中的一类规范,它与形式连续极限中线性协变规范的微扰定义相一致。详细描述和分析了相应的规范固定过程,并应用于纯SU(2)情况。此外,还给出了二维情形下胶子传播子的结果。

英文摘要:

Linear covariant gauges, such as Feynman gauge, are very useful in perturbative calculations. Their nonperturbative formulation is, however, highly non-trivial. In particular, it is a challenge to define linear covariant gauges on a lattice. We consider a class of gauges in lattice gauge theory that coincides with the perturbative definition of linear covariant gauges in the formal continuum limit. The corresponding gauge-fixing procedure is described and analyzed in detail, with an application to the pure SU(2) case. In addition, results for the gluon propagator in the two-dimensional case are given.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑