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Physics 7 Online
OpenStudy (anonymous):

Let |ψ> = a|0>+b|1> where a and b are nonnegative real numbers. We know that if we apply H to this qubit and then measure the resulting state in the sign basis, the probability of getting a + is 1/4 (a) What is |ψ> in the standard basis? (b) What is |ψ> in the sign basis?

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