论文标题
在有限的重子密度下的Polyakov环模型的双重模拟:相图和局部可观察物
Dual simulation of a Polyakov loop model at finite baryon density: phase diagram and local observables
论文作者
论文摘要
许多Polyakov循环模型都可以用双重配方编写,即使在动作中引入了非散落的Baryon化学势,也没有符号问题。在此,提出了一个有效的巴里昂密度以这种有效的Polyakov循环模型的双重表示的数值模拟的结果。我们计算了各种局部可观察物,例如能量密度,重子密度,夸克冷凝物,并详细描述模型的相图。建立了一阶相变和交叉的区域以及二阶相变的线。我们还计算了Polyakov环的几个相关函数。
Many Polyakov loop models can be written in a dual formulation which is free of sign problem even when a non-vanishing baryon chemical potential is introduced in the action. Here, results of numerical simulations of a dual representation of one such effective Polyakov loop model at finite baryon density are presented. We compute various local observables such as energy density, baryon density, quark condensate and describe in details the phase diagram of the model. The regions of the first order phase transition and the crossover, as well as the line of the second order phase transition, are established. We also compute several correlation functions of the Polyakov loops.