Above is the silhouette of almost one billion atoms, cooled to almost absolute zero (-273.15°C). The atom cloud is released from a magneto optical trap and allowed to fall using gravity. From the bottom of the video, a powerful laser is released from a special hollow optical fibre and through the atom cloud, trapping and guiding the coldest 1% of the atoms into the fibre.
Trapping and tightly packing millions of atoms within the fibre allows for the study of atom-light interactions, the baseline principles of many technologies such as absolutely-secure quantum communication network.
The video was created by PhD candidate, Ashby Hilton
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