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    Analysis of a free oscillation atom interferometer

    Rudra P. Kafle1, Dana Z. Anderson2, and Alex A. Zozulya1,*

    • 1Department of Physics, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts 01609, USA
    • 2Department of Physics and JILA, University of Colorado and National Institute of Standards and Technology, Boulder, Colorado 80309-0440, USA

    • *zozulya@wpi.edu
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    Phys. Rev. A 84, 033639 – Published 27 September, 2011

    DOI: https://doi.org/10.1103/PhysRevA.84.033639

    Abstract

    We analyze a Bose-Einstein condensate (BEC)-based free oscillation atom Michelson interferometer in a weakly confining harmonic magnetic trap. A BEC at the center of the trap is split into two harmonics by a laser standing wave. The harmonics move in opposite directions with equal speeds and turn back under the influence of the trapping potential at their classical turning points. The harmonics are allowed to pass through each other and a recombination pulse is applied when they overlap at the end of a cycle after they return for the second time. We derive an expression for the contrast of the interferometric fringes and obtain the fundamental limit of performance of the interferometer in the parameter space.

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    Phys. Rev. A 84, 033639– Published 27 September, 2011
    • Received 8 February 2011

    ©2011 American Physical Society

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