# qiskit.circuit.Instruction¶

class Instruction(name, num_qubits, num_clbits, params, duration=None, unit='dt')[ソース]

Generic quantum instruction.

Create a new instruction.

パラメータ
• name (str) – instruction name

• num_qubits (int) – instruction’s qubit width

• num_clbits (int) – instruction’s clbit width

• params (list[int|float|complex|str|ndarray|list|ParameterExpression]) – list of parameters

• duration (int or float) – instruction’s duration. it must be integer if unit is 『dt』

• unit (str) – time unit of duration

CircuitError – when the register is not in the correct format.

__init__(name, num_qubits, num_clbits, params, duration=None, unit='dt')[ソース]

Create a new instruction.

パラメータ
• name (str) – instruction name

• num_qubits (int) – instruction’s qubit width

• num_clbits (int) – instruction’s clbit width

• params (list[int|float|complex|str|ndarray|list|ParameterExpression]) – list of parameters

• duration (int or float) – instruction’s duration. it must be integer if unit is 『dt』

• unit (str) – time unit of duration

CircuitError – when the register is not in the correct format.

Methods

 __init__(name, num_qubits, num_clbits, params) Create a new instruction. add_decomposition(decomposition) Add a decomposition of the instruction to the SessionEquivalenceLibrary. Assemble a QasmQobjInstruction broadcast_arguments(qargs, cargs) Validation of the arguments. c_if(classical, val) Add classical condition on register classical and value val. copy([name]) Copy of the instruction. Invert this instruction. Return True .IFF. DEPRECATED: use instruction.reverse_ops(). Return a default OpenQASM string for the instruction. Creates an instruction with gate repeated n amount of times. For a composite instruction, reverse the order of sub-instructions. soft_compare(other) Soft comparison between gates. validate_parameter(parameter) Instruction parameters has no validation or normalization.

Attributes

 decompositions Get the decompositions of the instruction from the SessionEquivalenceLibrary. definition Return definition in terms of other basic gates. duration Get the duration. params return instruction params. unit Get the time unit of duration.
add_decomposition(decomposition)[ソース]

Add a decomposition of the instruction to the SessionEquivalenceLibrary.

assemble()[ソース]

Assemble a QasmQobjInstruction

broadcast_arguments(qargs, cargs)[ソース]

Validation of the arguments.

パラメータ
• qargs (List) – List of quantum bit arguments.

• cargs (List) – List of classical bit arguments.

Tuple(List, List) – A tuple with single arguments.

CircuitError – If the input is not valid. For example, the number of arguments does not match the gate expectation.

c_if(classical, val)[ソース]

Add classical condition on register classical and value val.

copy(name=None)[ソース]

Copy of the instruction.

パラメータ

name (str) – name to be given to the copied circuit, if None then the name stays the same.

a copy of the current instruction, with the name

updated if it was provided

qiskit.circuit.Instruction

property decompositions

Get the decompositions of the instruction from the SessionEquivalenceLibrary.

property definition

Return definition in terms of other basic gates.

property duration

Get the duration.

inverse()[ソース]

Invert this instruction.

If the instruction is composite (i.e. has a definition), then its definition will be recursively inverted.

Special instructions inheriting from Instruction can implement their own inverse (e.g. T and Tdg, Barrier, etc.)

a fresh instruction for the inverse

qiskit.circuit.Instruction

CircuitError – if the instruction is not composite and an inverse has not been implemented for it.

is_parameterized()[ソース]

Return True .IFF. instruction is parameterized else False

mirror()[ソース]

DEPRECATED: use instruction.reverse_ops().

a new instruction with sub-instructions

reversed.

qiskit.circuit.Instruction

property params

return instruction params.

qasm()[ソース]

Return a default OpenQASM string for the instruction.

Derived instructions may override this to print in a different format (e.g. measure q[0] -> c[0];).

repeat(n)[ソース]

Creates an instruction with gate repeated n amount of times.

パラメータ

n (int) – Number of times to repeat the instruction

Containing the definition.

qiskit.circuit.Instruction

CircuitError – If n < 1.

reverse_ops()[ソース]

For a composite instruction, reverse the order of sub-instructions.

This is done by recursively reversing all sub-instructions. It does not invert any gate.

a new instruction with

sub-instructions reversed.

qiskit.circuit.Instruction

soft_compare(other)[ソース]

Soft comparison between gates. Their names, number of qubits, and classical bit numbers must match. The number of parameters must match. Each parameter is compared. If one is a ParameterExpression then it is not taken into account.

パラメータ

other (instruction) – other instruction.

are self and other equal up to parameter expressions.

bool

property unit

Get the time unit of duration.

validate_parameter(parameter)[ソース]

Instruction parameters has no validation or normalization.