论文标题
qcd deconfinement关键点的进度
Progress on the QCD deconfinement critical point for $N_\text{f}=2$ staggered fermions
论文作者
论文摘要
在临界温度$ t_c $的情况下，自发损坏了零重度化学电位的QCD的全球中心对称性，导致一阶相变。包括重型动态夸克在内，明确打破了中心对称性，并削弱了减少夸克质量的一阶相变，直到在$ z（2）$ - 临界点变成平滑的交叉。我们调查了$ z（2）$ - $ n_ \ text {f} = 2 $ text = 2 $的QUARK质量值使用交错配方中的晶状体QCD。作为持续研究的一部分，我们介绍了$n_τ= 8,10 $ lattices的蒙特卡洛模拟的结果。模拟了几个长宽比和夸克质量值，以从Polyakov环的拟合到峰度有限尺寸缩放公式。此外，还探索了围绕$ z（2）$ - 关键点开发金茨堡 - 兰道有效理论的可能性。
The global center symmetry of quenched QCD at zero baryonic chemical potential is broken spontaneously at a critical temperature $T_c$ leading to a first-order phase transition. Including heavy dynamical quarks breaks the center symmetry explicitly and weakens the first-order phase transition for decreasing quark masses until it turns into a smooth crossover at a $Z(2)$-critical point. We investigate the $Z(2)$-critical quark mass value towards the continuum limit for $N_\text{f}=2$ flavors using lattice QCD in the staggered formulation. As part of a continued study, we present results from Monte-Carlo simulations on $N_τ=8,10$ lattices. Several aspect ratios and quark mass values were simulated in order to obtain the critical mass from a fit of the Polyakov loop to a kurtosis finite size scaling formula. Moreover, the possibility to develop a Ginzburg-Landau effective theory around the $Z(2)$-critical point is explored.
