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Dipolar relaxation in an ultra-cold gas of magnetically trapped chromium atoms

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Abstract

We investigate, both theoretically and experimentally, dipolar relaxation in a gas of magnetically trapped chromium atoms. We find that the large magnetic moment of 6 μB results in an event rate coefficient for dipolar relaxation processes of up to 3.2×10-11 cm3 s-1 in a magnetic field of 44 G. We present a theoretical model based on pure dipolar coupling, which predicts dipolar relaxation rates that agree with our experimental observations. This very general approach can be applied to a large variety of dipolar gases.

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Authors and Affiliations

  1. 5. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550, Stuttgart, Germany

    S. Hensler, J. Werner, A. Griesmaier, P.O. Schmidt, A. Görlitz & T. Pfau

  2. School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, KY 16 9SS, Fife, UK

    S. Giovanazzi

  3. Center for Theoretical Physics and College of Science, Polish Academy of Science, Aleja Lotników 32/46, 02-668, Warsaw, Poland

    K. Rzażewski

Authors
  1. S. Hensler
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  2. J. Werner
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  3. A. Griesmaier
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  4. P.O. Schmidt
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  5. A. Görlitz
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  6. T. Pfau
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  7. S. Giovanazzi
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  8. K. Rzażewski
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Corresponding author

Correspondence to S. Hensler.

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PACS

34.50.-s; 34.50.PI; 03.65.NK; 32.80.PJ

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Hensler, S., Werner, J., Griesmaier, A. et al. Dipolar relaxation in an ultra-cold gas of magnetically trapped chromium atoms. Appl. Phys. B 77, 765–772 (2003). https://doi.org/10.1007/s00340-003-1334-0

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  • DOI: https://doi.org/10.1007/s00340-003-1334-0

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