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Abstract: The study of Quantum Chromodynamics (QCD) phase transition stands as a cornerstone in understanding the fundamental forces and properties of the universe. In this talk, I will start by discussing the impact of the axial U1 anomaly on the nature of the chiral phase transition and its underlying mechanism. Then, I will present our recent findings on the microscopic origin of the macroscopic criticality associated with the chiral phase transition. Additionally, I will discuss the changes in the degrees of freedom and the strength of the transition in the strong magnetic fields, facilitated by fluctuations in the net baryon number, electric charge, and strangeness. Finally, I will propose that the baryon electric charge correlation, acting as a magnetometer of QCD, can be used to detect the existence of a magnetic field in the late stage of heavy ion collisions. This talk is based on arXiv: 2305.10916 and 2312.08860.
个人简介：丁亨通，教授，华中师范大学“夸克与轻子物理”教育部重点实验室副主任。2010年于德国比勒费尔德大学获得博士学位，随后在美国布鲁克海汶国家实验室和哥伦比亚大学从事博士后研究工作。2013年回国加入华中师大聘为教授, 2023年获国家基金委杰出青年基金资助。主要方向为利用格点量子色动力学的大型高性能数值计算方法研究强相互作用核物质在极端温度、密度和外场条件下的性质。目前共发表学术论文90余篇，其中7篇PRL，总被引九千余次。