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A. Introduction of Electron Spin |
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B. Special Properties of Angular Momentum 1/2 |
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C. Non-relativistic Description of a Spin 1/2 Particle |
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Complements of Chapter IX |
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Reader's Guide |
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AIX: Rotation Operators for
a Spin 1/2 Particle |
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BIX: Exercises |
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Chapter X
Addition of Angular Momenta |
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A. Introduction |
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B. Addition of Two Spin 1/2's. Elementary Method |
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C. Addition of Two Arbitrary Angular Momenta. General Method |
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Reader's Guide |
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AX: Examples of Addition
of Angular Momenta |
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BX: Clebsch-Gordan
Coefficients |
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CX: Addition of Spherical
Harmonics |
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DX: Vector Operators: the Wigner-Eckart Theorem |
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EX: Electric Multipole
Moments |
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FX: Evolution of Two
Angular Momenta J1 and J2 Coupled by an
Interaction a J1 J2 |
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GX: Exercises |
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Chapter XI
Stationary Perturbation Theory |
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A. Description of the Method |
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B. Perturbation of a Non-degenerate Level |
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C. Perturbation of a Degenerate Level |
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