qiskit.opflow.primitive_ops.PrimitiveOp.compose¶
- PrimitiveOp.compose(other, permutation=None, front=False)[source]¶
Return Operator Composition between self and other (linear algebra-style: A@B(x) = A(B(x))), overloaded by
@
.Note: You must be conscious of Quantum Circuit vs. Linear Algebra ordering conventions. Meaning, X.compose(Y) produces an X∘Y on qubit 0, but would produce a QuantumCircuit which looks like
-[Y]-[X]-
Because Terra prints circuits with the initial state at the left side of the circuit.
- Parameters
other (
OperatorBase
) – TheOperatorBase
with which to compose self.permutation (
Optional
[List
[int
]]) –List[int]
which defines permutation on other operator.front (
bool
) – If front==True, returnother.compose(self)
.
- Return type
- Returns
An
OperatorBase
equivalent to the function composition of self and other.