qiskit.chemistry.algorithms.ExcitedStatesEigensolver.solve

ExcitedStatesEigensolver.solve(driver, aux_operators=None)

Compute Ground and Excited States properties.

Parameters

• driver (BaseDriver) – a chemistry driver object which defines the chemical problem that is to be solved by this calculation.

• aux_operators (Optional[List[Any]]) – Additional auxiliary operators to evaluate. Must be of type FermionicOperator if the qubit transformation is fermionic and of type BosonicOperator it is bosonic.

Raises

NotImplementedError – If an operator in aux_operators is not of type FermionicOperator.

Return type

Union[ElectronicStructureResult, VibronicStructureResult]

Returns

An eigenstate result. Depending on the transformation this can be an electronic structure or bosonic result.