• Open Access

Electric-Field-Controlled Cold Dipolar Collisions between Trapped CH3F Molecules

M. Koller, F. Jung, J. Phrompao, M. Zeppenfeld, I. M. Rabey, and G. Rempe
Phys. Rev. Lett. 128, 203401 – Published 17 May 2022
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Abstract

Reaching high densities is a key step toward cold-collision experiments with polyatomic molecules. We use a cryofuge to load up to 2×107 CH3F molecules into a boxlike electric trap, achieving densities up to 107/cm3 at temperatures around 350 mK where the elastic dipolar cross section exceeds 7×1012cm2. We measure inelastic rate constants below 4×108cm3/s and control these by tuning a homogeneous electric field that covers a large fraction of the trap volume. Comparison to ab initio calculations gives excellent agreement with dipolar relaxation. Our techniques and findings are generic and immediately relevant for other cold-molecule collision experiments.

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  • Received 1 February 2022
  • Accepted 21 April 2022

DOI:https://doi.org/10.1103/PhysRevLett.128.203401

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Open access publication funded by the Max Planck Society.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

M. Koller, F. Jung, J. Phrompao, M. Zeppenfeld, I. M. Rabey, and G. Rempe

  • Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany

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Vol. 128, Iss. 20 — 20 May 2022

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