Module 4

	Addition of angular momentum
	Clebsch Gordan coefficients
	Problems
	Adding more than two angular momenta
	The rotation matrices
	Transformation properties of the spherical harmonics
	The Wickner-Eckart theorem
	The projection theorem

Sakurai, chapters 3.7 and 3.10, Cohen-Tannoudji, chapter 10 and Complements A_X and D_X.