OMP/LuMI OMP/LuMI Cold atoms, atom interferometry & clocks - PowerPoint PPT Presentation

OMP/LuMI OMP/LuMI Cold atoms, atom interferometry & clocks Hélène Perrin (Laboratoire de physique des lasers, Paris 13, CNRS) Jérôme Lodewyck (Syrte, Observatoire de Paris, UPMC, CNRS)

Scientific topics Cooling, trapping, and atom manipulation with light Matter waves – Atom interferometry Precision measurements: atomic clocks and atom interferometers

A very active domain of research  Five Nobel prizes over 25 years Separated oscillatory fields method 1997 N.F. Ramsey Laser Cooling and Trapping 1987 Ion trap technique S. Chu, C. Cohen-Tannoudji, W. Phillips H.G. Dehmelt, W.Paul Nobel Prize 1997 Nobel Prize 1987 2012 2005 Bose-Einstein Condensation E. Cornell, C. Wieman, W. Ketterle Nobel Prize 2001 Laser-based Precision Spectroscopy Measuring and anipulation of 2001 and Frequency Comb Technique individual quantum systems J. Hall and T. Hänsch Ion clocks Nobel Prize 2005 S. Haroche, D. Wineland 50 nK Nobel Prize 2012 200 nK 400 nK

Content  Laser cooling and atom interferometry (4 lectures + ex. classes)  Radiative forces  Laser cooling : Doppler cooling & sub-Doppler mechanisms  Magneto-optical trap  Atomic beam splitters and mirrors  Atom interferometry  Atomic clocks (3 lectures + exercice classes)  Principle – Clocks / atom interferometers  Noise & systematics  Examples of atomic clocks  Applications of clocks & atom interferometers  ½ day lab class in an IFRAF laboratory

Final exam  Lab class report (4 points)  3h written exam during the last session (16 points)