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Measurement of the Casimir-Polder force through center-of-mass oscillations of a Bose-Einstein condensate

D. M. Harber, J. M. Obrecht, J. M. McGuirk, and E. A. Cornell
Phys. Rev. A 72, 033610 – Published 13 September 2005
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Abstract

We have performed a measurement of the Casimir-Polder force using a magnetically trapped Rb87 Bose-Einstein condensate. By detecting perturbations of the frequency of center-of-mass oscillations of the condensate perpendicular to the surface, we are able to detect this force at a distance 5μm, significantly farther than has been previously achieved, and at a precision approaching that needed to detect the modification due to thermal radiation. Additionally, this technique provides a limit for the presence of non-Newtonian gravity forces in the 1μm range.

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  • Received 3 June 2005

DOI:https://doi.org/10.1103/PhysRevA.72.033610

©2005 American Physical Society

Authors & Affiliations

D. M. Harber, J. M. Obrecht, J. M. McGuirk*, and E. A. Cornell

  • JILA, National Institute of Standards and Technology and University of Colorado Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA

  • *Present address: Simon Fraser University, Department of Physics, 8888 University Drive, Burnaby, British Columbia, Canada V5A 1S6
  • Quantum Physics Division, National Institute of Standards and Technology.

See Also

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Don Monroe
Phys. Rev. Focus 16, 8 (2005)

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Vol. 72, Iss. 3 — September 2005

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