Week 10: Gauge invariance
Schwintenberg, Physics from Symmetry. Pages 91-113.
Updated 20.3.2023: added some more notes.
Updated 21.3.2023: added Monday's solutions and videos.
Updated 22.3.2023: added stuff to Wednesday's and Thursday's lectures.
Updated 28.3.2023: added Wednesday's and Thursday's solutions and videos.
Excerpt from Dirac's book. Pages 1, 11-24.
J. L. Friar and S. Fallieros, Diamagnetism, gauge transformations, and sum rules, American Journal of Physics 49, 847 (1981).