## UBC Math Department Colloquium: Sven Bachmann

- Date: 09/28/2018
- Time: 16:00

University of British Columbia

Integers in many-body quantum physics [video]

Although integers are ubiquitous in quantum physics, they have different mathematical origins. In this colloquium, I will give a glimpse of how integers arise as either topological invariants or as analytic indices, as is the case in the so-called quantum Hall effect. I will explain the difficulties arising in extending well-known arguments when one relaxes the approximation that the particles effectively do not interact with each other in matter. Recent advances have made such realistic generalizations possible.

A video of this event is available on mathtube.org

Location: ESB 2012

Refreshments will be served in ESB 4133 from 3:45 p.m.-4:00 p.m.