Obtain the selection rule for as follows: (a) Derive the commutation relation Use this, and (in
Question:
Obtain the selection rule for Δℓ as follows:
(a) Derive the commutation relation
Use this, and (in the final step) the fact that r.L = r. (rxP) = 0, to demonstrate that
The generalization from z to r is trivial.
(b) Sandwich this commutator between (n'ℓ 'm'| and |nℓ m). and work out the implications
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a b Making the obvious generalization of part a As before we sandwich this commutator bet...View the full answer
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Related Book For 
Introduction To Quantum Mechanics
ISBN: 9781107189638
3rd Edition
Authors: David J. Griffiths, Darrell F. Schroeter
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