Cold collisions in a high-gradient magneto-optical trap

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Ueberholz, B and Kuhr, S and Frese, D and Gomer, V and Meschede, D (2002) Cold collisions in a high-gradient magneto-optical trap. Journal of Physics B: Atomic, Molecular and Optical Physics, 35 (23). pp. 4899-4914. ISSN 0953-4075 (https://doi.org/10.1088/0953-4075/35/23/313)

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Abstract

We present a detailed analysis of the cold collision measurements performed in a high-gradient magneto-optical trap with a few trapped Cs atoms first presented in Ueberholz et al (J. Phys. B: At. Mol. Opt. Phys. 33 (2000) L135). The ability to observe individual loss events allows us to identify two-body collisions that lead to the escape of only one of the colliding atoms (up to 10% of all collisional losses). Possible origins of these events are discussed here. We also observed strong modifications of the total loss rate with variations in the repumping laser intensity. This is explained by a simple semiclassical model based on optical suppression of hyperfine-changing collisions between ground-state atoms.

ORCID iDs

Ueberholz, B, Kuhr, S ORCID logoORCID: https://orcid.org/0000-0001-8386-5357, Frese, D, Gomer, V and Meschede, D;
  • Item type:Article
    ID code:43774
    Dates:
    Date
    Event
    14 December 2002
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:09 May 2013 13:25
    Last modified:11 Nov 2024 10:24
    URI:https://strathprints.strath.ac.uk/id/eprint/43774
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