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spaghetti3451
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Homework Statement
Define measurement in the Copenhagen interpretation of quantum mechanics.
Homework Equations
The Attempt at a Solution
In the Copenhagen interpretation of quantum mechanics, measurement changes the state of a wavefunction, that is, it collapses the wavefunction into one its orthonormal basis vectors (eigenstates). We cannot assume that the system possesses properties if not measured...
I found the second sentence in a book of mine. Problem is I don't know what it means :-)
What do you think it means?