报告题目：The SK model with vector spins

主 讲 人：刘群 副教授（闽南师范大学）

报告时间：2025年3月15日（周六）上午9:00-10:00 

腾讯会议：357-538-675

邀请人：范协铨

报告摘要：In this talk we study the Sherrington-Kirkpatrick (SK) model with vector spins at high temperature. We prove that the fluctuation for the corresponding free energy converges weakly to a centered normal distribution through utilizing a stochastic integral method. Second, by using cavity method, we extend the full TAP equation scheme to the vector spins. These two results include quenched disorder fluctuation for the free energy as well as the corresponding TAP equation systems in both Ghatak-Sherrington model and SK model with Potts type spin..

报告人简介：刘群，闽南师范大学副教授，硕士生导师，2018年毕业于吉林大学数学学院。主要研究方向为概率极限理论和无序系统，目前主持国家自然科学基金青年项目一项，以第一作者发表SCI论文10余篇，主要发表在Journal of Statistical Physics、Reviews in Mathematical Physics等数学物理和概率杂志。