T > 0时SU（2）胶子动力学的拓扑结构：用Symanzik action和Neuberger重叠费米子的分析
The topological structure of SU(2) gluodynamics at T > 0 : an analysis using the Symanzik action and Neuberger overlap fermions
摘要：
我们研究了有限温度下SU（2）在退细化相变两侧的胶子动力学。我们使用树级蝌蚪改进的Symanzik行动创建的晶格合奏。利用Neuberger重叠Dirac算符确定了真空结构的以下三个方面：（i）在不同温度下计算了相变的拓扑磁化率;（ii）确定了重叠费米子谱密度，发现它依赖于相变上方的Polyakov环;（iii）研究了相应的低本征模的局域化性质。最后，我们与零温度的结果进行了比较。
英文摘要：
We study SU(2) gluodynamics at finite temperature on both sides of the deconfining phase transition. We create the lattice ensembles using the tree-level tadpole-improved Symanzik action. The Neuberger overlap Dirac operator is used to determine the following three aspects of vacuum structure: (i) The topological susceptibility is evaluated at various temperatures across the phase transition, (ii) the overlap fermion spectral density is determined and found to depend on the Polyakov loop above the phase transition and (iii) the corresponding localization properties of low-lying eigenmodes are investigated. Finally, we compare with zero temperature results.
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