Orateur
Jie Mei
(中国科学院大学物理科学学院)
Description
In the framework of Nambu--Jona-Lasinio model beyond mean field approximation, the effects of pion fluctuations on (inverse) magnetic catalysis and magnetic susceptibility are studied. The negative magnetic susceptibility at low temperature is observed when contributions from both neutral and charged pions are taken into account. In weak field approximation, it is observed that at finite temperature, the magnetic inhibition effect in the chiral limit, resulting from the difference between the transverse and longitudinal velocities of neutral pions, converts to weak magnetic catalysis when considering a non-zero current quark mass. Moreover, the magnetic catalysis is amplified by the charged pions.
Auteurs principaux
Prof.
Huang Mei
(中国科学院大学核科学与技术学院)
Jie Mei
(中国科学院大学物理科学学院)
Dr
Rui Wen
(中国科学院大学核科学与技术学院)
Prof.
Shijun Mao
(西安交通大学)
