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Q: Fachverband Quantenoptik und Photonik
Q 15: Poster 1: Quanteninformation, Quanteneffekte, Laserentwicklung, Laseranwendungen, Ultrakurze Pulse, Photonik
Q 15.85: Poster
Monday, March 14, 2011, 16:30–19:30, P1
Bose-Einstein Condensation and QND Measurements in a Crossed Optical Cavity — •Ralf Kohlhaas1, Thomas Vanderbruggen1, Simon Bernon1, Andrea Bertoldi1, Philipp Bouyer1, Arnaud Landragin2, and Alain Aspect1 — 1Laboratoire Charles-Fabry de l’Institut d’Optique, CNRS and Univ. Paris-Sud, Campus Polytechnique, RD 128, F-91127 Palaiseau, FRANCE — 2LNE-SYRTE, Observatoire de Paris, CNRS, UPMC, 61 avenue de l’Observatoire, 75014 Paris, FRANCE
The atomic shot noise level is a limit for the sensitivity of atom interferometers and can be overcome with the use of non-classical atomic states such as spin squeezed states. In this context, we investigate the generation of such states by quantum non-demolition measurements in a high-finesse optical cavity. Recent progress in the all-optical trapping and evaporation in a crossed optical cavity and a first characterization of the non destructive heterodyne detection scheme is reported.