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Indian Institute of Science Education and Research Bhopal
PHY 402: Atomic and Molecular Physics (4)
Prerequisite: PHY 304: Quantum Mechanics II
Brief review of Hydrogen atom and periodic table; Significance of four quantum numbers; Concepts of atomic orbital
One Valance Electron Atom: Review of [Orbital magnetic dipole moment; Orbital, spin and total angular momenta; Spin-orbit interaction and fine structures]; Intensity of spectral lines; General selection rules; Details of Stark, Zeeman (Normal and anomalous) and Paschenbeck effects
Many Valance Electrons Atom: Two Valance Electrons Atom: Para and ortho states and the role of Pauli’s Exclusion principle, He atom, Identical particles, Slater determinant; LS and JJ coupling scheme
Approximation Methods: The Hatree-Fock method; The Thomas-Fermi model of the atom
Width and shape of spectral lines; Hyperfine structure of lines; Lamb shift; Principal of ESR with experimental setup; chemical shift
Molecules: Concept of valance and bonding; Born-Oppenheimer approximation; Hydrogen molecule – Heitler-London method
Molecular orbital and electronic configuration of diatomic molecules (H2, C2, O2, NO, and CN); Vibrational structure and vibrational analysis; Frank-Condon principle; Dissociation energy; Rotational spectra; Raman spectra and influence of nuclear spin
Suggested Books:
- P. W. Atkins and R. S. Friedman, Molecular Quantum Mechanics 3rd Ed.
- W. Demtroder, Atoms, Molecules and Photons.
- G. W. Woodgate, Elementary Atomic Structure.
- H. S. Friedrich, Theoretical Atomic Physics.
- R. Eisberg and R. Resnick, Quantum Physics of Atoms, Molecules, Solids, Nuclei, and Particles.
- H. E. White, Introduction to Atomic Spectra.
- B. H. Bransden and C. J. Joachain, Physics of Atoms and Molecules.
- H. G. Kuhn, Atomic Spectra.
- F. A. Cotton, Chemical Applications of Group Theory.
- C. N. Banwell, Fundamentals of Molecular Spectroscopy.
- G. M. Barrow, Introduction to Molecular Spectroscopy.
- J. M. Hollas, Modern Spectroscopy.
- C. A. Coulson, Valence.
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