**PH-402 Atomic and Molecular Physics **

- The hydrogen atom, the Schrödinger equation, solution of the angular equation, solution of the radial equation, spin of the electron, spin-orbit interaction, the fine structure of hydrogen, parity, selection rules, transitions between fine-structure levels.
- Helium, the ground state of helium, excited states of helium, spin eigenstates, transitions in helium
- Many electron atoms, shell structure and the periodic table, Theoretical models for multielectron atoms, The model of Independent Electrons, The Hartee method, The Hartree-Fock Method, Configuration Interaction
- Couplings of Angular Momenta,
*LS*coupling scheme,*jj*coupling scheme, hyperfine structure and isotope shift. - Atoms in External Fields, The Stark Effect, The Zeeman Effect (normal and anomalous Zeeman effects).
- The Einstein A and B coefficients, the laser, Pumping, population inversion, rate equations and lasing conditions, optical resonators
- Fundamentals of Quantum Theory of Chemical Bonding, The Hydrogen-Molecule Ion H2+, The Tunnel Effect, The Hydrogen Molecule H2, Covalent-Ionic Resonance, Hybridization, The π Electrons of Benzene C6H6

**Recommended Texts:**

*Physics of Atoms and Molecules*, by B.H. Bransden and Joachain, publisher: Pearson Education 2nd Edition (2003)*Atoms, Molecules and Photons*, by W. Demtroder, publisher: Springer (2005)*The Physics of Atoms and Quanta,*by H. Haken and H.C. Wolf, publisher: Springer 7th Edition (2004)*Atomic Physics,*by C.J. Foot, publisher: Oxford University Press 1st Edition (2005).