Atomic and Molecular Physics for Competitive Exams

To excel in highly competitive physics examinations, you need more than just memorized formulas; you must thoroughly grasp the underlying quantum mechanics governing atoms and molecules. This text-only course provides a structured, mathematically rigorous approach to atomic and molecular physics, breaking down complex topics into clear, readable explanations. You will transition from basic atomic models to advanced spectroscopic predictions, building the analytical skills necessary to solve exam-level problems with confidence. What you'll learn: - Understand the quantum mechanical foundations of one-electron and multi-electron atoms - Analyze atomic spectra, fine structure, and hyperfine interactions using perturbation theory - Apply quantum mechanics to Zeeman, Paschen-Back, and Stark effects in external fields - Formulate rotational, vibrational, and electronic spectra of diatomic molecules - Solve complex exam-style problems using systematic mathematical derivations and modern approximation methods This course begins with foundational quantum concepts, spin-orbit coupling, and vector atom models, before progressing systematically to molecular spectroscopy and resonance techniques. It is designed for undergraduate and postgraduate physics students preparing for competitive examinations or looking to solidify their theoretical core. No advanced prerequisites are required, though a basic familiarity with introductory quantum mechanics is recommended. Start reading today to master the core principles of atomic and molecular physics.