Talk on the Tenfold Way

There are ten ways that a substance can have symmetry under time reversal, switching particles and holes, both or neither. But this fact turns out to extend far beyond condensed matter physics! It’s really built into the fabric of mathematics in a deep way.

Next Monday I’m giving a talk about this. It’s at 10 am Pacific Time, or 18:00 UTC. To attend, you need to register here. You can see my slides already here.