"Chirality, Vorticity and Magnetic Field in a Subatomic Quantum Fluid" by Jinfeng Liao (Indiana University)

Date: 
Thursday, May 30, 2019 - 3:30pm to 4:30pm
Series: 
Physics and Astronomy Colloquium

Thursdays, 3:30-4:30 pm

1-434 Physics and Astronomy (map)
Reception from 3:15-3:30 p.m.
(unless otherwise posted)

 

Guest Speaker: Jenfeng Liao (University of California, Riverside)

Talk Title:  “Chirality, Vorticity and Magnetic Field in a Subatomic Quantum Fluid”

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 astro-, atomic and condensed matter physics. In this talk, I will discuss two recent fascinating 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.

For more information, contact Yaroslav Tserkovnyak

We thank the following people for their contributions to the wine fund for the post-colloquium reception:
Professors Katsushi Arisaka, Andrea Ghez, Karoly Holczer, Huan Huang, HongWen Jiang, Per Kraus, Alexander Kusenko, Matthew Malkan, Mayank Mehta, Warren Mori, Ni Ni, Seth Putterman, David Saltzberg, Yaroslav Tserkovnyak, Vladimir Vassiliev, Shenshen wang, and Nathan Whitehorn.

Location: 
1-434 PAB