All notes below are in PDF format.

- Path integrals (revised 2/1/07)

See also Peskin and Schroeder, pp. 275–283

- Correlation functions and diagrams
(revised 2/8/07)

See also P&S pp. 211–222

- Observables from correlation
functions (revised 2/13/07)

See also P&S pp. 222–237

- Renormalization

Revised 3/5/07