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arXiv 1309.7850hep-lathep-th
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用重叠Dirac算符的低激发模分析格点胶子动力学中transition temperature附近的拓扑

Topology near the transition temperature in lattice gluodynamics analyzed by low lying modes of the overlap Dirac operator

E. -M. Ilgenfritz, B. V. Martemyanov, M. Muller-Preussker

摘要:

利用重叠Dirac算符的零模和近零模,在近转变温度的红外尺度上研究了$SU(3)$胶子动力学的拓扑对象.我们构建UV过滤的拓扑电荷密度对应于三个版本的时间边界条件应用到这个运营商,零模式是已知的位于相应的三个组成的双子(antidyons)在参考情况下的分析(反)caloron解决方案。这三种拓扑电荷密度的聚集标志着三种类型的双子和反双子的位置,因此可以被认为是存在于平衡(蒙特卡罗)胶子领域在给定的分辨率尺度。我们将它们分类为非解离的(反)calorons的成分或(反)双子对的成分或孤立的(反)双子。描述这些集群的中心和内部的Polyakov循环的模式观察后,有限数量的过度改进的冷却步骤,类似于已知的描述从分析caloron解决方案。

英文摘要:

Topological objects of $SU(3)$ gluodynamics are studied at the infrared scale near the transition temperature with the help of zero and near-zero modes of the overlap Dirac operator. We construct UV filtered topological charge densities corresponding to three versions of the temporal boundary condition applied to this operator, for which the zero mode is known to be located on corresponding three constituent dyons (antidyons) in the reference case of an analytical (anti)caloron solution. The clustering of the three topological charge densities marks the positions of three types of dyons and antidyons which can therefore be considered as present in equilibrium (Monte Carlo) gluonic fields at the given resolution scale. We classify them either as constituents of nondissociated (anti)calorons or as constituents of (anti)dyon pairs or as isolated (anti)dyons. The pattern of the Polyakov loop describing the centers and the interior of these clusters is observed after a limited number of overimproved cooling steps and resembles the description known from analytical caloron solutions.

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