- class ComposedOp(oplist, coeff=1.0, abelian=False)¶
A class for lazily representing compositions of Operators. Often Operators cannot be efficiently composed with one another, but may be manipulated further so that they can be composed later. This class holds logic to indicate that the Operators in
oplistare meant to be composed, and therefore if they reach a point in which they can be, such as after conversion to QuantumCircuits or matrices, they can be reduced by composition.
Return Operator addition of self and other, overloaded by
Return a new Operator equal to the Operator's adjoint (conjugate transpose), overloaded by
Binds scalar values to any Terra
Parametersin the coefficients or primitives of the Operator, or substitutes one
Same as assign_parameters, but maintained for consistency with QuantumCircuit in Terra (which has both assign_parameters and bind_parameters).
Return Operator Composition between self and other (linear algebra-style: A@B(x) = A(B(x))), overloaded by
Evaluate Equality between Operators, overloaded by
Evaluate the Operator's underlying function, either on a binary string or another Operator.
OperatorBaseequivalent to an exponentiation of self * -i, e^(-i*op).
MatrixOpequivalent to log(H)/-i for this operator H.
Returns the scalar multiplication of the Operator, overloaded by
*, including support for Terra's
Parameters, which can be bound to values later (via
Return the Operator's negation, effectively just multiplying by -1.0, overloaded by
Reduce without attempting to expand all distributive compositions.
Permute the qubits of the operator.
Return Operator composed with self multiple times, overloaded by
Return a set of strings describing the primitives contained in the Operator.
Try collapsing the Operator structure, usually after some type of conversion, e.g.
Return tensor product between self and other, overloaded by
Return tensor product with self multiple times, overloaded by
Returns the quantum circuit, representing the composed operator.
Returns an equivalent Operator composed of only QuantumCircuit-based primitives, such as
Attempt to return the Legacy Operator representation of the Operator.
Return NumPy representation of the Operator.
Returns an equivalent Operator composed of only NumPy-based primitives, such as
Returns an equivalent Operator composed of only Pauli-based primitives, such as
Returns SciPy sparse matrix representation of the Operator.
Apply the convert_fn to each node in the oplist.
- ENABLE_DEPRECATION = True¶
- INDENTATION = ' '¶
Whether the Operators in
oplistare known to commute with one another.
A bool indicating whether the
The scalar coefficient multiplying the Operator.
The function defining how to combine
oplist(or Numbers, or NumPy arrays) to produce the Operator’s underlying function. For example, SummedOp’s combination function is to add all of the Operators in
The combination function.
The gradient of
The list of
OperatorBasesdefining the underlying function of this Operator.
The Operators defining the ListOp