Theoretical physics 2 (quantum theory) lecture notes
Webber, Cooper.
In this course, we cover the necessary mathematical tools that underpin modern theoretical physics. We examine topics in quantum mechanics (with which you have some familiarity from previsious course) and apply the mathematical tools learnt the IB Mathematics course (complex analysis, differential equations, matrix methods, special functions etc.) to topics like perturbation theory, scattering theory, etc.
