Chirality, Vorticity and Magnetic Field in a Subatomic Quantum Fluid

主讲人 (Speaker): 

廖劲峰

主讲人单位 (Speaker's Institute): 

印第安纳大学

邀请人 (Invited by): 

林树

时间 (Time): 

星期四, 2019/01/10 - 14:00 to 15:00

地点 (Location): 

珠海校区海滨红楼17栋107 (Rm 107, Red House 17)

摘要 (Abstract): 

        By colliding heavy ions at high energies, physicists are able to ``break up''  nuclear particles like protons and neutrons and create a hot ``subatomic soup'' — a new form of matter called a quark-gluon plasma (QGP). The QGP forms at a temperature of about one trillion degrees or higher, and briefly occupied the baby Universe. Such primordial environment is now replicated in laboratory at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC). Experiments at RHIC and the LHC have opened the door to what I’d call the Quantum-Chromo-Material Science, by revealing and characterizing the fascinating many-body phenomena and properties of strongly interacting matter. Over the past decade, the collider-born QGP is found to be a nearly perfect quantum fluid, sharing many novel behaviors with other strongly correlated quantum systems in atomic and condensed matter physics. In this talk, I will discuss two very recent examples, arising from the nontrivial interplay of the extreme vorticity and magnetic fields with the spin and chirality of the underlying microscopic particles. The first is the global polarization of particle spin from fluid rotation, demonstrating “fluid spintronics” on the subatomic scale. The second is the anomalous transport phenomenon known as the Chiral Magnetic Effect (CME) that has been enthusiastically studied not only in the ``subatomic swirls’’ but also in Dirac and Well semimetals as well as in atomic, astrophysical and cosmological systems.

主讲人简介 (Speaker's CV): 

2001年本科毕业于清华大学 2004年硕士毕业于清华大学 2008年博士毕业于美国纽约州立大学石溪分校 2008年-2010年在劳伦斯伯克利国家实验室任博士后 2010年-2011年在布鲁克黑文国家实验室任博士后 2011年-2017年在印第安纳大学任助理教授 2017年至今在印第安纳大学任副教授