PermutationGate
class PermutationGate(pattern)
Bases: qiskit.circuit.gate.Gate
A gate that permutes qubits.
Return a permutation gate.
Parameters
pattern (List
[int
]) – permutation pattern, describing which qubits occupy the positions 0, 1, 2, etc. after applying the permutation, that is pattern[k] = m
when the permutation maps qubit m
to position k
. As an example, the pattern [2, 4, 3, 0, 1]
means that qubit 2
goes to position 0
, qubit 4
goes to the position 1
, etc.
Raises
CircuitError – if permutation pattern is malformed.
Reference Circuit:
(Source code, png, hires.png, pdf)
![../_images/qiskit-circuit-library-PermutationGate-1.png](/_next/image?url=%2Fimages%2Fapi%2Fqiskit%2F0.40%2Fqiskit-circuit-library-PermutationGate-1.png&w=640&q=75)
Expanded Circuit:
(Source code, png, hires.png, pdf)
![../_images/qiskit-circuit-library-PermutationGate-2.png](/_next/image?url=%2Fimages%2Fapi%2Fqiskit%2F0.40%2Fqiskit-circuit-library-PermutationGate-2.png&w=1080&q=75)
Methods Defined Here
inverse
PermutationGate.inverse()
Returns the inverse of the permutation.
qasm
PermutationGate.qasm()
The qasm for a permutation.
validate_parameter
PermutationGate.validate_parameter(parameter)
Parameter validation.
Attributes
condition_bits
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.
pattern
Returns the permutation pattern defining this permutation.
unit
Get the time unit of duration.