Seminars 李政道研究所-粒子核物理研究所联合演讲

QCD phase transitions within functional renormalization group approach

by Prof. Wei-jie Fu (Dalian University of Technology)

Asia/Shanghai
Online

Online

Description

Abstract

The functional renormalization group (fRG) is a nonperturbative continuum field approach, in which quantum, thermal and density fluctuations are integrated in successively with the evolution of the RG scale. In this seminar, I would like to discuss recent progress in fRG studies of QCD and QCD phase transitions at finite temperature and densities, including the fRG analogues of the Bethe-Salpeter equations and quark gap equation as well as their applications in hadron physics, QCD phase structure and the location of the critical end point (CEP), baryon number fluctuations, the criticality of the O(N) universality, etc. In particular, it will be shown that recent estimates for the location of the CEP or the onset of new physics from fRG and Dyson-Schwinger Equations converge in a rather small region at baryon chemical potentials of about 600 MeV. I also would like to discuss the possibility and prospect to pin down the location of CEP with joint efforts from fluctuation measurements in experiments and theoretical predictions.

 

Biography:

Wei-jie Fu is a professor of physics at Dalian University of Technology. He obtained Ph.D. in 2009 from Peking University. He held postdoctoral positions at Institute of Theoretical Physics, Chinese Academy of Sciences, Brandon University in Canada, and Institute for Theoretical Physics, University Heidelberg in Germany, before joining the Physics School of Dalian University of Technology as a faculty in 2016. His recent research interest focuses on the functional renormalization group approach and its application in the studies of QCD phase structure, QCD critical end point, heavy ion collisions, etc.

Online meeting room:https://meeting.tencent.com/dm/7Tek5bzp8Czg

(ID:486771857  Passcode: 123456)