IGate

class qiskit.circuit.library.IGate(label=None)

Bases: Gate

Identity gate.

Identity gate corresponds to a single-qubit gate wait cycle, and should not be optimized or unrolled (it is an opaque gate).

Can be applied to a QuantumCircuit with the i() and id() methods.

Matrix Representation:

\[\begin{split}I = \begin{pmatrix} 1 & 0 \\ 0 & 1 \end{pmatrix}\end{split}\]

Circuit symbol:

     ┌───┐
q_0: ┤ I ├
     └───┘

Create new Identity 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

inverse()

Invert this gate.

power(exponent)

Raise gate to a power.