Postulate 6: Quantum Mechanics
- Page ID
- 20892
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If a system is described by the eigenfunction \(\Psi\) of an operator \(\hat{A}\) then the value measured for the observable property corresponding to \(\hat{A}\) will always be the eigenvalue \(a\), which can be calculated from the eigenvalue equation.
\[ \hat {A} \Psi = a \Psi \tag {6.1}\]