201 citations · 217 across the 2 of their papers we have counts for
3 papers
Dynamics of single neutral impurity atoms immersed in an ultracold gas
Nicolas Spethmann, Farina Kindermann, Shincy John +3
We report on controlled doping of an ultracold Rb gas with single neutral Cs impurity atoms. Elastic two-body collisions lead to a rapid thermalization of the impurity inside the R…
Inserting single Cs atoms into an ultracold Rb gas
Nicolas Spethmann, Farina Kindermann, Shincy John +3
We report on the controlled insertion of individual Cs atoms into an ultracold Rb gas at about 400 nK. This requires to combine the techniques necessary for cooling, trapping and m…
Single Cs Atoms as Collisional Probes in a large Rb Magneto-Optical Trap
Claudia Weber, Shincy John, Nicolas Spethmann +2
We study cold inter-species collisions of Caesium and Rubidium in a strongly imbalanced system with single and few Cs atoms. Observation of the single atom fuorescence dynamics yie…