qiskit.circuit.Delay
class Delay(duration, unit='dt')
Do nothing and just delay/wait/idle for a specified duration.
Create new delay instruction.
__init__
__init__(duration, unit='dt')
Create new delay instruction.
Methods
__init__(duration[, unit]) | Create new delay instruction. |
add_decomposition(decomposition) | Add a decomposition of the instruction to the SessionEquivalenceLibrary. |
assemble() | Assemble a QasmQobjInstruction |
broadcast_arguments(qargs, cargs) | Validation of the arguments. |
c_if(classical, val) | Add classical condition on register or cbit classical and value val. |
copy([name]) | Copy of the instruction. |
inverse() | Special case. |
is_parameterized() | Return True .IFF. |
mirror() | DEPRECATED: use instruction.reverse_ops(). |
qasm() | Return a default OpenQASM string for the instruction. |
repeat(n) | Creates an instruction with gate repeated n amount of times. |
reverse_ops() | For a composite instruction, reverse the order of sub-instructions. |
soft_compare(other) | Soft comparison between gates. |
to_matrix() | Return a Numpy.array for the unitary matrix. |
validate_parameter(parameter) | Delay parameter (i.e. |
Attributes
decompositions | Get the decompositions of the instruction from the SessionEquivalenceLibrary. |
definition | Return definition in terms of other basic gates. |
duration | Get the duration of this delay. |
label | Return instruction label |
params | return instruction params. |
unit | Get the time unit of duration. |
add_decomposition
add_decomposition(decomposition)
Add a decomposition of the instruction to the SessionEquivalenceLibrary.
assemble
assemble()
Assemble a QasmQobjInstruction
broadcast_arguments
broadcast_arguments(qargs, cargs)
Validation of the arguments.
Parameters
- qargs (List) – List of quantum bit arguments.
- cargs (List) – List of classical bit arguments.
Yields
Tuple(List, List) – A tuple with single arguments.
Raises
CircuitError – If the input is not valid. For example, the number of arguments does not match the gate expectation.
c_if
c_if(classical, val)
Add classical condition on register or cbit classical and value val.
copy
copy(name=None)
Copy of the instruction.
Parameters
name (str) – name to be given to the copied circuit, if None then the name stays the same.
Returns
a copy of the current instruction, with the name
updated if it was provided
Return type
decompositions
Get the decompositions of the instruction from the SessionEquivalenceLibrary.
definition
Return definition in terms of other basic gates.
duration
Get the duration of this delay.
inverse
inverse()
Special case. Return self.
is_parameterized
is_parameterized()
Return True .IFF. instruction is parameterized else False
label
Return instruction label
Return type
str
mirror
mirror()
DEPRECATED: use instruction.reverse_ops().
Returns
a new instruction with sub-instructions
reversed.
Return type
params
return instruction params.
qasm
qasm()
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
repeat(n)
Creates an instruction with gate repeated n amount of times.
Parameters
n (int) – Number of times to repeat the instruction
Returns
Containing the definition.
Return type
Raises
CircuitError – If n < 1.
reverse_ops
reverse_ops()
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.
Returns
a new instruction with
sub-instructions reversed.
Return type
soft_compare
soft_compare(other)
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.
Parameters
other (instruction) – other instruction.
Returns
are self and other equal up to parameter expressions.
Return type
bool
to_matrix
to_matrix()
Return a Numpy.array for the unitary matrix. This has been added to enable simulation without making delay a full Gate type.
Returns
matrix representation.
Return type
np.ndarray
unit
Get the time unit of duration.
validate_parameter
validate_parameter(parameter)
Delay parameter (i.e. duration) must be int, float or ParameterExpression.