Thursday, March 06, 2025
4:00 PM -
5:00 PM
Online and In-Person Event
Physics Colloquium
Series: Physics Colloquium Series
What's Done Cannot Be Undone: Non-Invertible Symmetries
Shu-Heng Shao,
MIT,
Abstract: I will discuss recent developments on a novel kind of global symmetry known as non-invertible symmetry. It is implemented by conserved operators that do not have an inverse, going outside the paradigm set by Wigner's theorem. Nonetheless, they lead to new conservation laws, novel topological phases of quantum matter, and insights into particle phenomenology. I will start with the example in the Ising lattice model, and proceed to discuss applications in pion decay and axion physics.
Join via Zoom:
https://caltech.zoom.us/j/89860951893
Meeting ID: 898 6095 1893
The colloquium is held in Feynman Lecture Hall, 201 E. Bridge.
Event Sponsors:
For more information, please contact Denise Lu by email at deniselu@caltech.edu.
Add this event to your calendar.