标题： 小化学势下的QCD相图 显示英文标题

标题： The QCD phase diagram for small chemical potentials

摘要： 我们计算热力学量相对于$\mu$的导数，在$\mu=0$处对于 2 和 3 种简并夸克质量的情况。这使我们能够估计在$T,\mu$平面上的相变线，并通过计算恒定能量、压力和密度的线来量化非零化学势对状态方程的影响。此外，我们通过测量手征凝聚的 Binder 累积量来评估 QCD 相变的阶数。这使我们能够接触到相变线上的手征临界点。 显示英文摘要

摘要： We compute derivatives of thermodynamic quantities with respect to $\mu$, at $\mu=0$ for 2 and 3 flavors of degenerate quark masses. This allows us to estimate the phase transition line in the $T,\mu$ plane and quantify the influence of a non vanishing chemical potential on the equation of state by computing lines of constant energy, pressure and density. Moreover we evaluate the order of the QCD phase transition by measuring the Binder Cumulant of the chiral condensate. This gives access to the chiral critical point on the phase transition line.