应bevictor伟德国际卜严严老师邀请,暨南大学李丹凝教授近日来公司进行讲学活动,欢迎校内师生参加。
题目:Chiral phase transition, thermalization, and prethermalization in the soft-wall AdS/QCD model
时间:2024年7月15日10:00-12:00
地点:理学楼334
摘要:
We will discuss chiral phase transition in the soft-wall AdS/QCD model, by the bottom-up approach. The phase structure in the mass plane is extracting by analyzing the order parameter. It turns out to be consistent with the so called 'Columbia plot'. The in-medium properties of pions, as the Goldstone bosons, are investigated, as well. Qualitatively, the results are consistent with the finite temperature chiral perturbation theory. Finally, the real-time dynamics of chiral phase transition is studied. Interestingly, for a large class of initial states, the system would linger over a quasi-steady state for a certain period of time before the thermalization. It is suggested that the interesting phenomenon, known as prethermalization, has been observed in the framework of holographic models.
报告人简介:
李丹凝,暨南大学教授,2009年于中国科学技术大学获物理学学士学位,2014年于中国科学院高能物理研究所获理论物理博士学位,2014年至2016年在中国科学院理论物理研究所从事博士后研究,2016年7月进入暨南大学工作,现为物理与光电工程学院教授。主要从事高能核物理学的全息方法研究,已发表SCI论文四十余篇,获批主持国家自然科学基金3项。