More on Kubota’s spectrum of invertible states

Name: More on Kubota’s spectrum of invertible states
Start: 2026-02-03T16:15:00-05:00
End: 2026-02-03T18:30:00-05:00
Location: Science Center 507

CMSA Geometry and Quantum Theory Seminar

When: February 3, 2026

4:15 pm - 6:30 pm

Where: Science Center 507

Address: 1 Oxford Street, Cambridge, MA 02138, United States

Speaker: Bowen Yang (Harvard CMSA) | Dan Freed (Harvard CMSA)

Bowen will explain a construction aptly dubbed “Kitaev’s pump” in Kubota’s paper. Time permitting, Bowen will demonstrate its ubiquity throughout the study of topological phases, where it appears under various guises. In the second hour, Dan will sketch Kubota’s construction of a spectrum from families of invertible quantum lattice systems.