夸克物质的非微扰研究

The theoretical studies of quark matter, as well as the relevant experimental efforts with heavy-ion collisions are important topics in high energy nuclear physics. The fundamental theory of quark matter is the Quantum Chromo dynamics at finite temperature and density (hot dense QCD). To understand the non-perturbative behaviors of QCD has been a difficult task. The AdS/CFT correspondence and holographic principle provide us a novel modern approach to tackle the non-perturbative problems. In this project, by making use the AdS/CFT correspondence and holographic principle, together with the effective resummation methods in hot dense QCD and QCD motivated models, we will focus on some hot topics on quark matter physics. These include the hard probes of quark matter, like heavy quark potential and the dissociation of heavy quarkoniums, the jet energy loss parameter, as well as the anomaly induced transport properties such as chiral magnetic effect and chiral vertical effect. We will also study the new properties of chiral phase transition in hot dense QCD with a strong magnetic field and the underline mechanism. These studies will be useful for uncovering the new properties of strongly interaction quark matter with an external magnetic field. They can also provide theoretic supports for understanding some new phenomena in heavy-ion collisions and new lattice results . They are important for the developments of hot dense gauge theories as well.

夸克物质的理论和相关的重离子碰撞实验研究是高能核物理的重要课题。夸克物质的基本理论是有限温度密度下的量子色动力学(热密QCD),它在强耦合区的非微扰行为是吸引人们不断探索的难题。 AdS/CFT对应和引力全息原理为研究夸克物质的非微扰问题提供了一条崭新途径。 本项目着重应用AdS/CFT对应 和全息原理, 结合热密QCD及其相关模型理论的有效重求和方法，相互关联相互补充地研究夸克物质的有关热点问题：包括强耦合夸克物质中重夸克势与重夸克偶素的溶解和 喷注的能量损失等硬探针信号,手征磁效应和手征涡旋效应等反常诱导的输运性质；进一步探索强外磁场下QCD的手征相变新特征及其物理机制。这些研究有助于揭示强耦合夸克物质及其在外磁场下的一些新特征和规律，为理解重离子碰撞中的有关新现象和格点模拟的结果提供理论依据和参考，对推动热密规范理论本身的发展也有重要意义。

本项目所研究的核心问题是夸克物质的非微扰研究. 在基金委资助下，我们的研究工作进展顺利，共发表SCI论文近30篇（其中本专业影响因子较大的国际重要期刊约20篇），达到了预期目标。主要进展有：我们应用AdS/CFT对应 和全息原理, 泛函重整化群方程，结合热密QCD及其相关模型理论的动力论和有效重求和方法，相互关联相互补充地研究夸克物质的有关热点问题：包括强耦合夸克物质中重夸克势与重夸克偶素的溶解和 喷注的能量损失等硬探针信号,手征磁效应和手征涡旋效应等反常诱导的输运性质；进一步探索有量子涨落和强外磁场下手征相变新特征及其物理机制。这些研究有助于揭示强耦合夸克物质及其在外磁场下的一些新特征和规律，为理解重离子碰撞中的有关新现象和格点模拟的结果提供理论依据和参考，对推动热密规范理论本身的发展也有重要意义。