- #1
rockstar101
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Homework Statement
An electron is in the spin state in the Sz representation
|ψ> = A (1-2i 2)T <- this is a 2 X 1 matrix
If Sx is measured, what values and probabilities do you get?
What is the expectation value of Sx?
Homework Equations
The Attempt at a Solution
So first, I need to find what A equals to:
A^2 [ (1-2i)(1+2i)+ 4 ] = 1
thus A = 1/3
now, I need to know what values of Sx I would get and the probabilities to
proceed to find the expectation value.
What values of Sx would I get? could it be just +/- h-bar/2 ??
What would be the probabilities??
I would really appreciate any hint or help!