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Unit 2: Angular momentum TEXTBOOK: Quantum Mechanics, Vol. 2, by Claude Cohen-Tannoudji, et al., Wiley-VCH. TABLE OF CONTENTS Angular momentum 1/2 Spin 1/2 particles Rotation operators Addition of two spin 1/2 Addition of two arbitrary angular momenta Examples Clebsch-Gordan coefficients Addition of spherical harmonics The Wigner-Eckart theorem Electric multipole moments Coupled angular momenta

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