qiskit.chemistry.algorithms.QEOM.solve

QEOM.solve(driver, aux_operators=None)

Run the excited-states calculation.

Construct and solves the EOM pseudo-eigenvalue problem to obtain the excitation energies and the excitation operators expansion coefficients.

Parameters

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

• aux_operators (Union[List[FermionicOperator], List[BosonicOperator], None]) – Additional auxiliary operators to evaluate. Must be of type FermionicOperator if the qubit transformation is fermionic and of type BosonicOperator it is bosonic.

Return type

Union[ElectronicStructureResult, VibronicStructureResult]

Returns

The excited states result. In case of a fermionic problem a ElectronicStructureResult is returned and in the bosonic case a VibronicStructureResult.