Topics in Quantum Mechanics by David Tong
ID: topics-in-quantum-mechanics-by-david-tong
David Tong's University of Cambridge lecture notes: www.damtp.cam.ac.uk/user/tong/aqm/topicsinqm.pdf. Section 3.1.3, printed pp. 71–75, develops the magnetic-moment argument for atomic spin-orbit coupling and its Thomas precession correction.
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