M operation
Warning
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Please see https://aka.ms/qdk.api for the API documentation for the Modern QDK.
Namespace: Microsoft.Quantum.Intrinsic
Package: Microsoft.Quantum.Type2.Core
Performs a measurement of a single qubit in the Pauli $Z$ basis.
operation M (qubit : Qubit) : Result
Description
The output result is given by the distribution \begin{align} \Pr(\texttt{Zero} | \ket{\psi}) = \braket{\psi | 0} \braket{0 | \psi}. \end{align}
Input
qubit : Qubit
Qubit to be measured.
Output : Result
Zero
if the $+1$ eigenvalue is observed, and One
if
the $-1$ eigenvalue is observed.
Remarks
Equivalent to:
Measure([PauliZ], [qubit]);
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