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Phys. Rev. A 57, 3805–3808 (1998)

Pumping two dilute-gas Bose-Einstein condensates with Raman light scattering

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C. M. Savage1,2, Janne Ruostekoski1, and Dan F. Walls1
1Department of Physics, University of Auckland, Private Bag 92019, Auckland, New Zealand
2Department of Physics and Theoretical Physics, Faculty of Science, Australian National University, Australian Capital Territory 0200, Australia

Received 24 September 1997; published in the issue dated May 1998

We propose an optical method for increasing the number of atoms in a pair of dilute-gas Bose-Einstein condensates. The method uses laser-driven Raman transitions which scatter atoms between the condensate and noncondensate atom fractions. For a range of condensate phase differences there is destructive quantum interference of the amplitudes for scattering atoms out of the condensates. Because the total atom scattering rate into the condensates is unaffected, the condensates grow.

© 1998 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.57.3805
DOI:
10.1103/PhysRevA.57.3805
PACS:
03.75.Fi, 05.30.Jp, 32.80.Pj, 42.50.Vk