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新葡萄88805官网“博约学术论坛”- 许坤-第429期

来源: 作者: 发布时间:2024-01-25

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报告人:

时间: 2024-01-25

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­新葡萄88805官网博约学术论坛系列报告

429

题目极端条件下夸克物质的性质

报告人许坤 博士后中国科学院大学

20241月25周四下午14:30

大学物理实验中心229会议室

摘要

夸克物质在极端环境中会呈现什么样的性质呢?在这个报告中,我将介绍高能核物理近些年研究热点,然后汇报我做的三个工作。第一个是在相对论性重离子对撞中,利用重子数扰动高阶矩寻找QCD相变的临界终点(CEP,以及在低能对撞中可能出现的核子物质的气液相变;第二个是研究手征相变以及π介子和ρ介子的质量随着磁场的变化;第三个是研究了相对论重离子对撞中出现的超子自旋极化现象,以及通过自旋密度涨落解释φ介子K^{ *0}介子的自旋对齐现象。

另外,作为一个科普爱好者在过去的几年中,我在线上创作了几百篇的图文和视频,以及参与了多次线下科普活动,今年获得了知乎灯塔计划计划100万的资助,用于科普创作。在本报告中,我也将汇报我在过去几年参与的科普创作与活动,并分享做科普的一点心得与感想。

简历

2016-2021年,中科院高能所理论室,博士;

2021-2024年,国科大核学院,博士后。

联系方式ygyao@bit.edu.cn

邀请人: 姚裕贵 教授

址:http:/

承办单位:物理学院先进光电量子结构设计与测量教育部重点实验室

*TitleThe properties of quark matter under extreme conditions

*Reporter Kun Xu

*Time

*Place

*Contact Person:

*Abstract:

What properties does quark matter exhibit in extreme environments? In this report, I will introduce the hot topics in high-energy nuclear physics in recent years, and then report on three works I have done. The first is to find the Critical End Point (CEP) of the QCD phase transition by using the higher moments of baryon number fluctuations in relativistic heavy-ion collisions, as well as the gas-liquid phase transition of nuclear matter that may occur in low-energy collisions; the second is to study chiral phase transitions and the mass changes of π mesons and ρ mesons under magnetic fields; the third is to investigate the hyperon spin polarization phenomenon in relativistic heavy-ion collisions, and explain the spin alignment of φ mesons and K*0 mesons through spin density fluctuations.

Moreover, as a science popularization enthusiast, over the past few years, I have created hundreds of articles and videos online, as well as participated in numerous offline science popularization events. This year, I received one million in funding from Zhihu's [灯塔计划] for science popularization creation. In this report, I will also report on the science popularization creation and activities I have participated in over the past few years and share some thoughts and feelings about doing science popularization.

*Profile

2016-2021, Division of Theoretical Physics, Institute of High Energy Physics, Ph.D;

2021-2024, School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Postdoctor