Logo Leibniz Universität Hannover
Logo: Institut für Quantenoptik/Leibniz Universität Hannover
Logo Leibniz Universität Hannover
Logo: Institut für Quantenoptik/Leibniz Universität Hannover
  • Zielgruppen
  • Suche
 

Experimental Realization

To initiate our experiments we cool an ensemble of Rubidium-87 atoms to ultra-low temperatures. Close to the absolute zero,, at a few hundred nanokelvin, the Rubidium atoms form a Bose-Einstein-condensate (BEC) . The size of the condensate is about a tenth millimeter and we image the atoms with a CCD camera. Figure 1 shows how a Bose-Einstein-Condensate emerges from a thermal cloud for three different temperatures (indicated here by the final radiofrequency of the evaporation ramp).
 

Fig. 1: Emergence of a BEC from a thermal cloud. The frequencies indicate the final RF frequency of the evaporation ramp.

Experiment subassemblies

The main parts of our expermental apparatus are

Research on Experimental Techniques: