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    Optimizing the Stark-decelerator beamline for the trapping of cold molecules using evolutionary strategies

    Joop J. Gilijamse, Jochen Küpper*, Steven Hoekstra, Nicolas Vanhaecke†, Sebastiaan Y. T. van de Meerakker, and Gerard Meijer

    • Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany

    • *Author to whom all correspondence should be addressed. Electronic address: jochen@fhi-berlin.mpg.de
    • †Present address: Laboratoire Aimé Cotton, CNRS II, Campus d’Orsay, Bâtiment 505, 91405 Orsay Cedex, France.
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    Phys. Rev. A 73, 063410 – Published 20 June, 2006

    DOI: https://doi.org/10.1103/PhysRevA.73.063410

    Abstract

    We demonstrate feedback control optimization for the Stark deceleration and trapping of neutral polar molecules using evolutionary strategies. In a Stark-decelerator beamline, pulsed electric fields are used to decelerate OH radicals and subsequently store them in an electrostatic trap. The efficiency of the deceleration and trapping process is determined by the exact timings of the applied electric field pulses. Automated optimization of these timings yields an increase of 40% of the number of trapped OH radicals.

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    Phys. Rev. A 73, 063410– Published 20 June, 2006
    • Received 14 March 2006

    © 2006 American Physical Society

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