The z-direction angular momentum operator in quantum mechanics is given as (SPH eqn 44): Ә L3=-ih де Using this expression, and the definition of the spherical harmonics Ym (0,4), satisfy yourself that they are eigenfunctions of L3. What is the eigenvalue of a spherical harmonic Ym (0.4), under the operator L3, in terms of n. m, ħ?
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