# Kinetics of the evaporative cooling of an atomic beam

Source: [Kinetics of the evaporative cooling of an atomic beam](<https://www.sota2.com/research/paper/68fa33f51e209131ce89477d>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T20:22:04.911Z

Authors: Thierry Lahaye, David Gu\\'ery-Odelin

Published: 2006-01-31T19:50:28.000Z

## Abstract

We compare two distincts models of evaporative cooling of a magnetically guided atomic beam: a continuous one, consisting in approximating the atomic distribution function by a truncated equilibrium distribution, and a discrete-step one, in which the evaporation process is described in terms of successive steps consisting in a truncation of the distribution followed by rethermalization. Calculations are performed for the semi-linear potential relevant for experiments. We show that it is possible to map one model onto the other, allowing us to infer, for the discrete-step model, the rethermalization kinetics, which turns out to be strongly dependent upon the shape of the confining potential.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/cond-mat/0601718>)

[PDF](<https://arxiv.org/pdf/cond-mat/0601718.pdf>)