ZGate#
- class qiskit.circuit.library.ZGate(label=None)[source]#
Bases:
GateThe single-qubit Pauli-Z gate (\(\sigma_z\)).
Can be applied to a
QuantumCircuitwith thez()method.Matrix Representation:
\[\begin{split}Z = \begin{pmatrix} 1 & 0 \\ 0 & -1 \end{pmatrix}\end{split}\]Circuit symbol:
┌───┐ q_0: ┤ Z ├ └───┘Equivalent to a \(\pi\) radian rotation about the Z axis.
নোট
A global phase difference exists between the definitions of \(RZ(\pi)\) and \(Z\).
\[\begin{split}RZ(\pi) = \begin{pmatrix} -i & 0 \\ 0 & i \end{pmatrix} = -i Z\end{split}\]The gate is equivalent to a phase flip.
\[\begin{split}|0\rangle \rightarrow |0\rangle \\ |1\rangle \rightarrow -|1\rangle\end{split}\]Create new Z gate.
Attributes
- condition_bits#
Get Clbits in condition.
- decompositions#
Get the decompositions of the instruction from the SessionEquivalenceLibrary.
- definition#
Return definition in terms of other basic gates.
- duration#
Get the duration.
- label#
Return instruction label
- name#
Return the name.
- num_clbits#
Return the number of clbits.
- num_qubits#
Return the number of qubits.
- params#
return instruction params.
- unit#
Get the time unit of duration.
Methods