论文标题
在QCD的有效模型中使用规范方法
The use of the canonical approach in effective models of QCD
论文作者
论文摘要
我们阐明了在Nambu-Jona-Lasinio（NJL）和Polyakov-NJL（PNJL）模型中，规范方法在有限温度和密度下效果很好的区域。规范方法是在有限密度的晶格QCD模拟中避免符号问题的有用方法，但它涉及一些参数。我们发现，从规范方法计算的数字密度与参数内的大多数限制阶段中的精确值一致，这些值适用于晶格QCD。
We clarify regions where the canonical approach works well at the finite temperature and density in the Nambu-Jona-Lasinio (NJL) and Polyakov-NJL (PNJL) models. The canonical approach is a useful method for avoiding the sign problem in lattice QCD simulations at finite density, but it involves some parameters. We find that number densities computed from the canonical approach are consistent with exact values in most of the confinement phase within the parameters, which are applicable in lattice QCD.
