## PHY420 Atomic and Molecular Physics## BS-MS 2014, I-PhD 2016 Batches, 2018 Spring Semester## Instructor: Bhas Bapat |

Course Contents | Tutor | Schedule | Course Material | Evaluation |

*Updated 13-Apr-2018*

- Experiments that give insights into the structure of the atom
- Schrodinger equation for Hydrogen and fine structure of energy levels
- Many electron atoms Hartree-Fock and Thomas-Fermi models
- Zeeman and Stark Effects
- Interaction of Atoms with radiation, Dipole Approximation, Oscillator Strengths
- Einstein Coefficients, 2 and 3 level atoms and principle of lasing
- Electron-Atom, Ion-Atom, Atom-Atom Scattering, Atoms in strong EM fields,
- Ionisation by charged particles and photons
- Diatomic Molecules, Molecular Orbitals, Angular Momentum
- Born-Oppenheimer Approximation, Potential Energy Curves, Electronic, Vibrational and Rotational degrees of freedom
- Optical, Infrared, Microwave and Raman Spectroscopy

- Trapping and Cooling of Atoms and Molecules
- Current Research in Atomic and Molecular Physics

- Deepak Sharma (deepak.sharma@students.iiserpune.ac.in)

We will mainly follow * W Demtröder *, but other books will often be useful. This will be indicated in the class.

- Atoms Molecules and Photons,
*W Demtröder*, Springer (2010) 2/e - Atoms and Quanta,
*Haken and Wolf*, Springer (2010) 2/e - Physics of Atoms and Molecules
*B H Bransden and C J Joachain*, Pearson International (2011) 2/e - Quantum Mechanics (Non-relativistic Theory)
*L D Landau and E M Lifshitz*, Course on Theoretical Physics Vol 3, Pergamon Press/Butterworth Heinemann - Molecular Quantum Mechanics
*Atkins and Friedman*, Oxford Press 4/e

*Demotröder's book does not include scattering. Bransden-Joachain and Landau-Lifshitz (Sections 32–35,45 and sections from Chapters XVII,XVIII) should be referred to.*

- Week-1 Introduction
- Week-2 Hydrogen Atom (Bohr and Schrödinger descriptions)
- H-orbitals Hydrogen Atom Fine Structure
- Week-3 Helium Atom
- Week-4 Multielectron atoms, Hartree-Fock theory
- Week-5 Interaction with Radiation
- Week-6 and Part of Week-5 Lineshapes, Photoelectric Effect
- Week-7 Introduction to Lasers
- Week-8 Diatomic Molecules
- Week-9 Diatomic Molecules (Contd.)
- Week-10 Diatomic Molecules (Contd.)
- Week-10 Diatomic Molecules (Summary)
- Week-11 Scattering (Introduction)
- Week-11 Scattering (Details)
- Week-12 Scattering (Elastic Scattering -- phase shift calculation, form factor estimation)
- Week-13 Scattering (Inelastic)
- Week-13 Scattering (Inelastic, Contd.)
- Week-14 Experiments/Applications (Also see Demtröder Chap 11, 12 and the last few entries in “Supplementary Material”)

- Randal Telfer, Johns Hopkins University, Essay on the Hydrogen Atom
- Tom Kirchner, York University, Theory for Atomic and Molecular Structure
- A M Fox, Sheffield University, Laser and Atomic Physics
- D M Lucas, Oxford University, Time dependent Perturbation
- Simon Hooker, Oxford University, Molecules and Lasers
- P Ewart, Oxford University, Atomic Structure, Spectroscopy
- R E Johnson, University of Virginia, Atomic and Molecular Collisions
- Also see the Wikipedia page on Rotational and Vibrational Spectroscopy
- Stopping Power, M Inokuti
- Ion-matter interactions and applications
- Accelerator Mass Spectrometry, Hellborg and Skog
- Radiation Therapy, Schardt et al
- Femtochemistry, A Zewail
- Higher Harmonic generation, Tom Allison

Course evaluation scheme | ||

a. | End-sem examination | 40% |

b. | Mid-sem examination | 30% |

c. | Two Quizzes (25 Jan, 28 Mar) | 15% + 15% |

- Tutorial-1
- Tutorial-2
- Tutorial-3
- Tutorial-4
- Quiz-1
- Quiz-2
- Quiz Solutions
- Mid-Sem Questions
- Mid-Sem Solutions