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Realization of a magnetically guided atomic beam in the collisional regime

T. Lahaye·J. M. Vogels·K. Guenter·Z. Wang·J. Dalibard·D. Guery-Odelin
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Abstract

We describe the realization of a magnetically guided beam of cold rubidium atoms, with a flux of $7\times 10^9$ atoms/s, a temperature of 400 $μ$K and a mean velocity of 1 m/s. The rate of elastic collisions within the beam is sufficient to ensure thermalization. We show that the evaporation induced by a radio-frequency wave leads to appreciable cooling and increase in phase space density. We discuss the perspectives to reach the quantum degenerate regime using evaporative cooling.

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T. Lahaye, J. M. Vogels, K. Guenter, Z. Wang, J. Dalibard, D. Guery-Odelin. 2004-05-01. Realization of a magnetically guided atomic beam in the collisional regime. https://doi.org/10.1103/physrevlett.93.093003

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