qiskit.opflow.converters.CircuitSampler.convert

CircuitSampler.convert(operator, params=None)

Converts the Operator to one in which the CircuitStateFns are replaced by DictStateFns or VectorStateFns. Extracts the CircuitStateFns out of the Operator, caches them, calls sample_circuits below to get their converted replacements, and replaces the CircuitStateFns in operator with the replacement StateFns.

Parameters

• operator (OperatorBase) -- The Operator to convert

• params (Optional[Dict[Parameter, Union[float, List[float], List[List[float]]]]]) -- A dictionary mapping parameters to either single binding values or lists of binding values.

Return type

OperatorBase

Returns

The converted Operator with CircuitStateFns replaced by DictStateFns or VectorStateFns.

Raises

OpflowError -- if extracted circuits are empty.