In this physics course, you will be introduced to the QED Hamiltonian (Quantum ElectroDynamics), and learn how to construct diagrams for light-atom interactions. Using your new tools you will study Van der Waals and Casimir interactions, resonant scattering and radiative corrections.

This course is a part of a series of courses to introduce concepts and current frontiers of atomic physics, and to prepare you for cutting-edge research:

At MIT, the content of the five courses makes the second of a two-semester sequence (8.421 and 8.422) for graduate students interested in Atomic, Molecular, and Optical Physics. This sequence is required for Ph.D. students doing research in this field.

Completing the series allows you to pursue advanced study and research in cold atoms, as well as in specialized topics in condensed matter physics. In these five courses you will learn about the following topics:

- Quantum states and dynamics of photons
- Photon-atom interactions: basics and semiclassical approximations
- Open system dynamics
- Optical Bloch equations
- Applications and limits of the optical Bloch equations
- Dressed atoms
- Light force
- Laser cooling
- Cold atoms
- Evaporative cooling
- Bose-Einstein condensation
- Quantum algorithms and protocols
- Ion traps and magnetic traps