28 citations · 72 across the 5 of their papers we have counts for
5 papers
Getting the elastic scattering length by observing inelastic collisions in ultracold metastable helium atoms
Signe Seidelin, Rodolphe Hoppeler, Olivier Sirjean +4
We report an experiment measuring simultaneously the temperatureand the flux of ions produced by a cloud of triplet metastablehelium atoms at the Bose-Einstein critical temperature…
Using ion production to monitor the birth and death of a metastable helium Bose-Einstein condensate
S. Seidelin, O. Sirjean, J. Viana Gomes +3
We discuss observations of the ion flux from a cloud of trapped metastable helium atoms. Both Bose-Einstein condensates and thermal clouds were investigated. The ion flux is compar…
Ionization rates in a Bose-Einstein condensate of metastable Helium
O. Sirjean, S. Seidelin, J. Viana Gomes +4
We have studied ionizing collisions in a BEC of He*. Measurements of the ion production rate combined with measurements of the density and number of atoms for the same sample allow…
Bose-Einstein condensation of metastable helium: some experimental aspects
C. I. Westbrook, A. Robert, O. Sirjean +3
We describe our recent realization of BEC using metastable helium. All detection is done with a micruchannel plate which detects the metastables or ions coming from the trapped ato…
Thermalization of magnetically trapped metastable helium
A. Browaeys, A. Robert, O. Sirjean +5
We have observed thermalization by elastic collisions of magnetically trapped metastable helium atoms. Our method directly samples the reconstruction of a thermal energy distributi…