Cold collisions in a high-gradient magneto-optical trap

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)

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.

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• Item metadata

  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:	08 Apr 2024 20:29
  URI:	https://strathprints.strath.ac.uk/id/eprint/43774