"Duality and emergent symmetries in two-dimensional electron systems"by Michael Mulligan (UC Riverside)

Date: 
Thursday, January 31, 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 p.m.
(unless otherwise posted)

 

Guest Speaker: Michael Mulligan (University of California, Riverside)

Talk Title:  “Duality and emergent symmetries in two-dimensional electron systems”

Abstract:

Duality is the ability to describe the same physics in two (or more) distinct ways. A dual description can sometimes provide physical insight -- not readily obtained within more conventional approaches -- that is needed to yield a solution to a particular problem. In this talk, I'll describe how emergent symmetries and recently discovered dualities help to understand the surprising metallic behavior found in the two-dimensional electron gas when a strong transverse magnetic field is applied. Duality motivates a picture in which a Fermi sea of neutral Dirac fermions emerges from a gas of interacting electrons. I'll conclude by outlining a few outstanding questions and comment on other physical systems, such as superconducting thin films, where duality may prove useful.

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