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Use the orthonormal ity of the states a and B to analyze as.a) (als.a) =(pls.la) =(Als.IA) (als_la) (AIA) (a/s |A) 0

Why are they all = 0?

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Shift operators se Suzisy The two spin states are a&p. Sega be the traghen S shifts a lower spin skate to some higher spin stAnd either way, <a 15. 1x) 20..

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