Colloquium - Jinfeng Liao (Indiana University) - The Story of Spin in an Extreme Fluid

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Jinfeng Liao (Indiana University) 9/15/20 colloquium speaker
September 15, 2020
3:30PM - 5:30PM
Location
Zoom seminar

Date Range
Add to Calendar 2020-09-15 15:30:00 2020-09-15 17:30:00 Colloquium - Jinfeng Liao (Indiana University) - The Story of Spin in an Extreme Fluid Spin is an intrinsic quantum degree of freedom for various elementary particles that together make all of matter in our Universe. A salient feature of spin is its polarizability when subject to external probes such as a magnetic field. This feature is at the heart of many interesting phenomena across different disciplines of physics. In this talk, I will briefly recount some of those examples and then tell the latest fascinating story of spin from nuclear physics research, and more specifically from a new phase of nuclear matter called the quark-gluon plasma (QGP). This subatomic quantum material occupied the baby Universe briefly and is re-created today in laboratories through high energy nuclear collisions. Two decades of comprehensive studies have found the QGP to be an extreme fluid in several aspects, as I shall show you. It is only in recent years that physicists have started to unravel novel effects arising from the interplay between particle spin and the extreme conditions available in a QGP droplet. I will discuss how the polarization of spin by chirality, vorticity and magnetic field leads to nontrivial signatures that can be observed experimentally.​   Join Zoom Meeting https://osu.zoom.us/j/92720068264?pwd=Uk5IUDNjRjlkc0tVamZYQlgrMDVrQT09   Meeting ID: 927 2006 8264 Password: 397251 Zoom seminar Department of Physics physics@osu.edu America/New_York public
Description

Spin is an intrinsic quantum degree of freedom for various elementary particles that together make all of matter in our Universe. A salient feature of spin is its polarizability when subject to external probes such as a magnetic field. This feature is at the heart of many interesting phenomena across different disciplines of physics. In this talk, I will briefly recount some of those examples and then tell the latest fascinating story of spin from nuclear physics research, and more specifically from a new phase of nuclear matter called the quark-gluon plasma (QGP). This subatomic quantum material occupied the baby Universe briefly and is re-created today in laboratories through high energy nuclear collisions. Two decades of comprehensive studies have found the QGP to be an extreme fluid in several aspects, as I shall show you. It is only in recent years that physicists have started to unravel novel effects arising from the interplay between particle spin and the extreme conditions available in a QGP droplet. I will discuss how the polarization of spin by chirality, vorticity and magnetic field leads to nontrivial signatures that can be observed experimentally.​

 

Join Zoom Meeting

https://osu.zoom.us/j/92720068264?pwd=Uk5IUDNjRjlkc0tVamZYQlgrMDVrQT09

 

Meeting ID: 927 2006 8264

Password: 397251