Bianca J. Sawyer, Amita B. Deb, Thomas McKellar, Niels Kjærgaard
We have used nondestructive laser probing to follow the central density evolution of a trapped atomic cloud during forced evaporative cooling. This was achieved in a heterodyne dispersive detection scheme. We propose to use this as a precursor measurement for predicting the atom number subsequent to evaporation and provide a simple experimental demonstration of the principle leading to a conditional reduction of classical number fluctuations.
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http://arxiv.org/abs/1211.2093
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