# A passively pumped vacuum package sustaining cold atoms for more than 200 days

@inproceedings{Little2021APP,
title={A passively pumped vacuum package sustaining cold atoms for more than 200 days},
author={B J Little and Gregory W. Hoth and Justin E. Christensen and Chuck Walker and Dennis J. De Smet and Grant W. Biedermann and Jongmin Lee and Peter D. D. Schwindt},
year={2021}
}
• Published 4 January 2021
• Physics
Compact cold-atom sensors depend on vacuum technology. One of the major limitations to miniaturizing these sensors are the active pumps—typically ion pumps—required to sustain the low pressure needed for laser cooling. Although passively pumped chambers have been proposed as a solution to this problem, technical challenges have prevented successful operation at the levels needed for cold-atom experiments. We present the ﬁrst demonstration of a vacuum package successfully independent of ion…
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