Gate

class Gate(name, num_qubits, params, label=None)

Bases: qiskit.circuit.instruction.Instruction

Unitary gate.

Create a new gate.

Parameters

• name (str) – The Qobj name of the gate.

• num_qubits (int) – The number of qubits the gate acts on.

• params (List) – A list of parameters.

• label (Optional[str]) – An optional label for the gate.

Methods

add_decomposition	Add a decomposition of the instruction to the SessionEquivalenceLibrary.
assemble	Assemble a QasmQobjInstruction
broadcast_arguments	Validation and handling of the arguments and its relationship.
c_if	Set a classical equality condition on this instruction between the register or cbit classical and value val.
control	Return controlled version of gate.
copy	Copy of the instruction.
inverse	Invert this instruction.
is_parameterized	Return True .IFF.
power	Creates a unitary gate as gate^exponent.
qasm	Return a default OpenQASM string for the instruction.
repeat	Creates an instruction with gate repeated n amount of times.
reverse_ops	For a composite instruction, reverse the order of sub-instructions.
soft_compare	Soft comparison between gates.
to_matrix	Return a Numpy.array for the gate unitary matrix.
validate_parameter	Gate parameters should be int, float, or ParameterExpression

Attributes

condition_bits

Get Clbits in condition.

Return type

List[Clbit]

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

Return type

str

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.