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C. Bulutay Semiconductor Electronic Structure & Optical Processes <strong>Lecture</strong> 6<br />

J=L+S<br />

Refreshment on total Angular Momentum (cont’d)<br />

A schematic<br />

representation of<br />

the angular<br />

momentum states<br />

j=l+s=3/2, m j=3/2,…,-3/2<br />

j=l-s=1/2 mj=1/2,-1/2 ls<br />

,<br />

,<br />

Clebsch-Gordan coefficients<br />

for J 1 =1 and J 2 =1/2<br />

Be ware, different<br />

phase choices exist<br />

as in LK<br />

jm<br />

Ref: Singh

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