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Phys. Rev. A 63, 051603 (2001) [4 pages]

Cavity-assisted quasiparticle damping in a Bose-Einstein condensate

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S. A. Gardiner1,2,3, K. M. Gheri1, and P. Zoller1
1Institut für Theoretische Physik, Universität Innsbruck, A-6020 Innsbruck, Austria
2Institut für Physik, Universität Potsdam, D-14469 Potsdam, Germany
3Institut für Theoretische Physik, Universität Hannover, D-30167 Hannover, Germany

Rapid Communication Received 1 February 2001; published 19 April 2001

We consider an atomic Bose-Einstein condensate held within an optical cavity and interacting with laser fields. We show how the interaction of the cavity mode with the condensate can cause energy due to excitations to be coupled to a lossy cavity mode, which then decays, thus damping the condensate. We show how to choose parameters for damping specific excitations, and how to target a range of different excitations to potentially produce extremely cold condensates.


©2001 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevA.63.051603
DOI: 10.1103/PhysRevA.63.051603
PACS: 03.75.-b, 32.80.Pj

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