A kiwi from the atom lab to brighten your day. All kiwis are made from atoms – the only difference is that the one on the right was made today from rubidium atoms.
The image is made with 20000 atoms expanding from a Bose-Einstein Condensate of rubidium atoms in a plane (the plane is made by interfering two 1064 nm laser beams, having a lower frequency that the main resonance in rubidium).
- The kiwi is 150 micrometres in length.
- The atoms have a temperature of 10 nK.
- The height of the barrier made by the green laser is 2 microkelvin.