作为自对偶双子的热阿贝尔单极子
Thermal Abelian monopoles as selfdual dyons
摘要：
研究了SU（2）胶子动力学解禁闭阶段热阿贝尔单极子的性质。为了消除Gribov副本的影响，采用模拟退火算法固定最大阿贝尔规范。为了研究热阿贝尔作用量的分布，我们首先计算了热阿贝尔作用量的过剩密度与热阿贝尔作用量中心距离的函数关系。我们发现，从$\approx$ 2晶格间距出发，电子的色电作用密度和色磁作用密度相等，由此得出电子是双子的结论。此外，我们发现，色电场和色磁场随距离的增加呈指数下降。这些发现在$T/T_c \in (1.5, 4.8)$范围内的不同温度下得到证实。
英文摘要：
The properties of the thermal Abelian monopoles are studied in the deconfinement phase of the SU(2) gluodynamics. To remove effects of Gribov copies the simulated annealing algorithm is applied to fix the maximally Abelian gauge. To study monopole profile we complete the first computations of excess of the nonabelian action density as a function of the distance from the center of the thermal Abelian monopole. We have found that starting from the distances $\approx$ 2 lattice spacings the chromoelectric and chromomagnetic action densities created by monopole are equal to each other, from what we draw a conclusion that monopole is a dyon. Furthermore, we find that the chromoelectric and chromomagnetic fields decrease exponentially with increasing distance. These findings were confirmed for different temperatures in the range $T/T_c \in (1.5, 4.8)$.
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