qiskit.chemistry.algorithms.pes_samplers.VibronicStructureBase.vibrational_energy_level¶ abstract VibronicStructureBase.vibrational_energy_level(n)[source]¶ Returns the n-th vibrational energy level for a given mode. Parameters n (int) – number of vibrational mode Return type float Returns n-th vibrational energy level for a given mode