物理学科Seminar第308讲
理论物理研究所Seminar第36期
报告题目：Axial charge dynamics -- topological transition and quark mass effect
报 告 人：林树 教授/国家青年千人 （中山大学物理与天文学院）
报告时间：2016年9月9日（周五）上午10:00
报告地点：校本部E106
邀 请 人：葛先辉 教授
报告摘要：The dynamics of axial charge has been a key component of the celebrated chiral magneic effect (CME) and chiral magnetic wave (CMW) in heavy ion collisions. Due to the non-conservation of axial charge, the inclusion of axial charge in hydrodynamic equations is a subtle issue. On one hand, axial charge is generated by fluctuation owing to its non-conservation, on the other hand, the non-conservation also provide mechanism of charge dissipation. A more appropriate treatment is to use stochastic hydrodynamics for axial charge. In this talk, I will use two holographic models to study two separate sources of non-conservation: topological transition and quark mass. Both of them will contribute to the fluctuation and dissipation of axial charge.
