| Speaker: | Susanne Reffert (University of Bern) |
|---|---|
| Title: | The large charge expansion for relativistic and non-relativistic physics |
| Date (JST): | Tue, Jan 06, 2026, 13:30 - 15:00 |
| Place: | Seminar Room A |
| Abstract: |
The large-charge expansion is a powerful approach for analytically accessing strongly-coupled models at or near criticality. We focus on a sector of fixed and large global charge where it is possible to express observables as an expansion in inverse powers of the charge. I will first introduce the approach using the simplest relativistic case, namely the O(2) model. Then I will discuss the large-charge expansion of non-relativistic models with applications to ultracold Fermi gases and nuclear physics. |
