
# Problem Sets

I once had a student evaluation that complained about the number of problems I had a written for a course. This struck me as a bit like complaining about the number of books in a library.

### Problem Set 1

Many body wavefunctions; Lieb-Liniger; Collective excitations; Spin chains,

### Problem Set 2

Second Quantization; Lattice models; Bose gas

### Problem Set 3

Fermi gas; Superconductivity; Response and Correlation; Jellium.

### Problem Set 4

Kondo Model; Jordan--Wigner; Bosonization.