- #1
RJLiberator
Gold Member
- 1,095
- 63
Homework Statement
We know: In a measurement of quantum mechanics (basic) the average value is the cosine of the angle between the orthonormal basis of the measurement apparatus and the qubit (vector) entering it.
Question: How do we prove this?
Homework Equations
The Attempt at a Solution
Can there be a mathematical proof to this? Or is this done by painstaking experiments in a laboratory?
If you can answer this question, then I will know how to proceed.
Thank you.