Expectation value calculation
If a qubit is in the state |0⟩, what is the expectation value of the Pauli-Z operator (⟨Z⟩)?
What does an expectation value of ⟨Z⟩ = 0 imply about the qubit state?
Which Pauli matrix corresponds to the observable represented by [[0, 1], [1, 0]]?
In quantum mechanics, what does the expectation value ⟨A⟩ signify?
The Pauli-X operator measures the projection of the qubit spin along which axis of the Bloch sphere?