SU中磁顶点温度依赖性的探索性研究(2)朗道规范杨-米尔斯理论
Exploratory study of the temperature dependence of magnetic vertices in SU(2) Landau gauge Yang--Mills theory
摘要:
顶点描述了基本自由度之间的相互作用,因此在场论的许多从头计算描述中至关重要,特别是使用泛函方法。为此,我们首次对(最小)Landau规范SU(2)Yang-Mills三点函数,即三胶子和鬼胶子顶点的热行为进行了格点研究。在色磁区,我们发现相变主要影响三胶子顶点,而鬼胶子顶点相对惰性。
英文摘要:
Vertices describe the interactions between the fundamental degrees of freedom, and are therefore of vital importance in many ab-initio descriptions of field theory, especially using functional methods. To this end, we present the first lattice study of the thermal behavior of (minimal) Landau-gauge SU(2) Yang--Mills three-point functions, i.e. three-gluon and ghost-gluon vertices. Focusing on the chromomagnetic sector, we find that the phase transition mainly affects the three-gluon vertex, while the ghost-gluon vertex is relatively inert.
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