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Wednesday, October 22, 2008

Microscopic Structure Of Quantum Gases Made Visible: Bose-Einstein Condensate

Scientists at the Johannes Gutenberg University Mainz have, for the first time, succeeded in rendering the spatial distribution of individual atoms in a Bose-Einstein condensate visible. Bose-Einstein condensates are small, ultracold gas clouds which, due to their low temperatures, can no longer be described in terms of traditional physics but must be described using the laws of quantum mechanics.

The first Bose-Einstein condensates were generated in 1995 by Eric A. Cornell, Carl E. Wieman and Wolfgang Ketterle, who received the Nobel Prize in Physics for their work only six years later. Since then, these unique gas clouds, the coldest objects humans ever created, have become a global research object.
Physicists working with Dr Herwig Ott in the study group for quantum, atomic and neutron physics (QUANTUM) at Mainz University have now developed a new tech-nology that can be used to plot the individual atoms in a Bose-Einstein condensate. In addition, the spatial resolution achieved during plotting far exceeds any previous methods used. .....

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