论文标题
全息黑洞的状态和相图的QCD方程
QCD Equation of State and Phase Diagram from Holographic Black Holes
论文作者
论文摘要
通过使用AD/CFT对应关系，我们构建了一个爱因斯坦 - 马克斯韦尔 - 迪拉顿模型来绘制强相互作用的热力学。全息模型被限制为在零巴属化学势下重现状态晶格QCD方程，预测了临界终点和一阶相变线。我们还获得了相图的大区域的模型状态方程。我们通过两条线表征了交叉过渡区域，其中一条与二阶Baryon易感性的拐点相关，而另一个与沿声音速度的最小值相关，沿着baryon数量的恒定熵轨迹的轨迹的最小值。我们观察到这两条线在临界点合并。
By using the AdS/CFT correspondence, we construct an Einstein-Maxwell-Dilaton model to map the thermodynamics of strongly interacting matter. The holographic model, constrained to reproduce the lattice QCD equation of state at zero baryon chemical potential, predicts a critical end point and a first order phase transition line. We also obtain the equation of state of the model for a large region of the phase diagram. We characterize the crossover transition region by two lines, one associated to the inflection of the second order baryon susceptibility, and another one associated to the minimum of the square of the speed of sound along trajectories of constant entropy per baryon number. We observe that both lines merge at the critical point.
