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Phys. Rev. A 61, 013605 (1999) [4 pages]

Excitation-assisted inelastic processes in trapped Bose-Einstein condensates

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D. Guéry-Odelin1 and G. V. Shlyapnikov1,2,3,*
1Laboratoire Kastler Brossel, 24 Rue Lhomond, F-75231 Paris Cedex 05, France
2FOM Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands
3Russian Research Center, Kurchatov Institute, Kurchatov Square, 123182 Moscow, Russia

Received 27 May 1999; published 13 December 1999

We find that inelastic collisional processes in Bose-Einstein condensates induce local variations of the mean-field interparticle interaction, and are accompanied by the creation and annihilation of elementary excitations. The physical picture is demonstrated for the case of three-body recombination in a trapped condensate. For a high trap barrier the production of high-energy trapped single-particle excitations results in a strong increase of the loss rate of atoms from the condensate.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.61.013605
DOI:
10.1103/PhysRevA.61.013605
PACS:
03.75.Fi, 05.30.Jp, 82.20.Pm

*LKB is a “unité de recherche de l’Ecole Normale Supérieure et de l’Université Pierre et Marie Curie, associée au CNRS.”

 
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