标题： 有限温度和密度下QCD物质的近期理论发展 显示英文标题

标题： Recent theoretical developments on QCD matter at finite temperature and density

摘要： 有限温度和密度下的QCD物质是近年来理论发展非常迅速的一个课题。 在这篇综述中，我将讨论从格点QCD出发，在手征交叉过渡附近关于QCD介质微观自由度的一些新见解。 关于诸如重子数、奇异数等守恒电荷的涨落和关联的最新高精度格点数据有助于我们理解并区分相互作用强子的不同模型。 此外，还将讨论关于临界终点位置以及临界线曲率的最新约束。 在本综述的后半部分，我将讨论来自重离子碰撞实验中粒子产额理论分析的关于所创建介质热性质的见解，并在多大程度上守恒电荷关联和涨落的格点数据可以给我们关于冻结火球的信息。 显示英文摘要

摘要： QCD matter at finite temperature and density is a subject that has witnessed very impressive theoretical developments in the recent years. In this review I will discuss some new insights on the microscopic degrees of freedom of the QCD medium near the chiral crossover transition from lattice QCD. Latest high precision lattice data on the fluctuations and correlations between conserved charges like the baryon number, strangeness can help us to understand and distinguish between different models of interacting hadrons. Furthermore, the latest constraints on the location of the critical end-point and the curvature of the critical line will be discussed. In the later part of this review I will discuss about the insights on the thermal nature of the medium created in heavy ion collision experiments that have come from the theoretical analysis of the particle yields, and to what extent the lattice data on correlations and fluctuations of conserved charges can give us any information about the fireball at freezeout.