Title :
Penning collisions in a cold gas of trapped metastable helium atoms
Author :
Leonard, Jim ; Perales, F. ; Dos Santos, Franck Pereira ; Sinatra, A. ; Junmin Wang ; Leduc, M. ; Cohen-Tannoudji, C.
Author_Institution :
Lab. Kastler Brossel, Ecole Normale Superieure, Paris, France
Abstract :
Summary form only given. We report progress on an experiment on trapped metastable /sup 4/He(2/sup 3/S/sub 1/) atoms which aims at producing a dense gas of ultra cold atoms, with the goal of reaching Bose-Einstein condensation. We have built a magneto-optical trap (MOT) in which we study the cold collisions, which are the main loss cause limiting the obtainable density.
Keywords :
Bose-Einstein condensation; helium neutral atoms; laser cooling; magneto-optical effects; metastable states; particle traps; radiation pressure; Bose-Einstein condensation; He; Penning collisions; cold collisions; cold gas; dense gas; magneto-optical trap; trapped metastable /sup 4/He(2/sup 3/S/sub 1/) atoms; trapped metastable helium atoms; ultra cold atoms; Atomic beams; Atomic measurements; Density estimation robust algorithm; Doped fiber amplifiers; Fluorescence; Helium; Metastasis; Nitrogen; Optical collimators; Ytterbium;
Conference_Titel :
Quantum Electronics Conference, 2000. Conference Digest. 2000 International
Conference_Location :
Nice, France
Print_ISBN :
0-7803-6318-3
DOI :
10.1109/IQEC.2000.907929
