Unformatted text preview: z basis states:  + ± x = a  + ± + b ± where a and b are in general complex. Then we see that ² +  + ± x = a and we require  a  2 = 1 2 to agree with the experiment. so we ﬁnd a = 1 √ 2 e iα . We will choose (by convention) α = 0 so a = 1 √ 2 . Similarly for b . So we ﬁnd that  + ± x = 1 √ 2 (  + ± + ± ) 1...
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 Spring '10
 ROTHBERG
 Physics, Linear Algebra, Fundamental physics concepts, basis states, Probability amplitude

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