Instructor: Prof. Ivan Deutsch (my research group web page)
Phys/Astro Room 24, Phone: 277-1502
email: ideutsch@unm.edu
Prequisites: Physics 521-522 (or equivalent)
Overview: What began as simple technique to be used for improved spectroscopy and precision measurement has blossomed into a powerful tool for fundamental studies in low temperature physics. New applications in matter wave interferometry, quantum degenerate gases, and quantum information processing are now being actively pursued. The inventions have lead to two Nobel Prizes in physics: 1997 (for atomic laser cooling) and 2001 (for Bose-Einstein condensation). This seminar is an introduction to theory and experiment in laser cooling and trapping of neutral atoms and ions. A series of lectures for ~7 weeks will be followed by student presentations on contemporary research papers. Topics to be covered include:
• Basics of atom-photon interaction.
• Doppler cooling.
• Optical molasses and magneto-optic traps.
• Subdoppler polarization and polarization gradient cooling.
• Ion traps and resolved sideband cooling.
• Optical lattices.
Tentative Schedule of Lectures
Lecture
Topic
1
Overview: History of laser cooling,
Lorentz oscillator model, two-level atom. Forces on atoms.
2
Doppler Cooling: Optical molasses and the Doppler Limit.
3
Trapping
Dipole traps, Magneto-optic trap, and ion traps
4
Cooling trapped particles -- The Lamb-Dicke effect.
5
Resolved sideband laser cooling.
6
7
Optical Lattices
Oct. 30-Dec. 15
Student presentations
I. Laser Cooling
III. Trapping
II. Atom Optics
III. Degenerate Quantum Gases
IV. Ultracold Collisions
V. Quantum Information/Control