Optics and Spectroscopy · 1975 · 10 citations · 0 references
Natural SciencesChemistryPhysicsAtomic PhysicsTheoretical ChemistryTheoretical PhysicsApproximation MethodsBorn-oppenheimer ApproximationDensity Functional TheoryInteratomic PotentialsPerturbation MethodsPerturbation TheoryAtomic Structure CalculationsInteratomic Potential ModelsMany-body Perturbation TheoryMolecular Perturbation TheoryPerturbation Density Functional TheoryPerturbation Theory In Atomic SystemsQuantum Mechanical Perturbation Theory