Unformatted text preview: op S H L H S L H J H r r r r r and hence the total angular momentum is conserved! Furthermore, k ijk j i S i S S ε h = ] , [ and = I I S 4 3 2 2 h and the eigenvalues of z S are h 2 1 ± . Hence, the Dirac equation describes relativistic particles and antiparticles that carry intrinsic spin ½ !...
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 Spring '07
 FIELDS
 mechanics, Angular Momentum, Momentum, Fundamental physics concepts, op, total angular momentum

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