报告人:姚晓骏 博士 (麻省理工学院) 报告时间:2022年08月19日 10:00 - 11:30 (Beijing time) 摘要: Quarkonium has been used as a probe of the quark-gluon plasma(QGP) in heavy ion collisions for decades. To understand the experimental data on quarkonium production, it is important to study the time evolution of quarkonium states inside the plasma. Most phenomenological studies replied on classical rate equations which neglect quantum effects and introduce model dependence in recombination. In this talk, I will review the application of the open quantum system framework to study quarkonium in the QGP. I will explain how the open quantum system framework treats Debye screening, dissociation and recombination in the same theoretical ground and thus removing model dependence in recombination. I will also show the quantum evolution equations in both the quantum optical and quantum Brownian motion limits and discuss their relations with the semiclassical transport equations such as the Langevin equation and the Boltzmann equation. I will then discuss recent calculations of the chromoelectric field correlators that encode the essential information of the QGP in the quarkonium in-medium dynamics. Finally, I will discuss phenomenologicalimplications of theframework. 报告人简介: 姚晓骏博士,2013年在山东大学获得理学学士学位,2019年在杜克大学获得物理学博士学位。之后他在麻省理工学院的理论物理 中心从事博士后研究。其主要研究兴趣包括有效场理论,重离子碰撞物理,电子离子碰撞物理以及量子计算在核物理和粒子物理中 的应用。