Unformatted text preview: ¯ h 2 and¯ h 2 . The average is ¯ h 2 P +¯ h 2 P= ¯ h 2 1 2 (1 + sin θ(1sin θ )) = ¯ h 2 sin θ Notice what happens when θ = 0, θ = π 2 , θ = π . Do these results agree with what you expect? Calculate the expectation value of S x ² ψ  S x  ψ ± = ² S x ± . ² S x ± = ‡ cos θ 2 sin θ 2 · ¯ h 2 0 1 1 0 cos θ 2 sin θ 2 = ¯ h 2 (2 cos θ 2 sin θ 2 ) = ¯ h 2 sin θ...
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This note was uploaded on 03/01/2010 for the course PHYSICS 225 taught by Professor Rothberg during the Spring '10 term at University of Washington.
 Spring '10
 ROTHBERG
 Physics

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