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arXiv hep-lat/9902027hep-lat
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解约束阶段的约束:用聚类算法的数值研究

Confinement in the Deconfined Phase: A numerical study with a cluster algorithm

K. Holland

摘要:

我们以前在SU(3)Yang-Mills理论中发现了一种非常不寻常和意想不到的禁闭形式。这种限制发生在理论的去限制阶段。单个静态测试夸克的自由能是发散的,即使它包含在退禁闭的体相中,并且没有QCD弦存在。这种现象发生在具有一定空间边界条件选择的圆柱体中。我们研究数值杨米尔斯理论的有效模型,并使用集群算法,我们观察到这种不寻常的限制。我们还发现了一种新的方法来确定分离不同的体相畴壁的界面张力。

英文摘要:

We have previously found analytically a very unusual and unexpected form of confinement in SU(3) Yang-Mills theory. This confinement occurs in the deconfined phase of the theory. The free energy of a single static test quark diverges, even though it is contained in deconfined bulk phase and there is no QCD string present. This phenomenon occurs in cylindrical volumes with a certain choice of spatial boundary conditions. We examine numerically an effective model for the Yang-Mills theory and, using a cluster algorithm, we observe this unusual confinement. We also find a new way to determine the interface tension of domain walls separating distinct bulk phases.

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