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Electric-field-controlled cold dipolar collisions between trapped CH$_3$F molecules
- Source :
- Phys. Rev. Lett. 128, 203401 (2022)
- Publication Year :
- 2022
-
Abstract
- Reaching high densities is a key step towards cold-collision experiments with polyatomic molecules. We use a cryofuge to load up to 2$\times10^7$ CH$_3$F molecules into a box-like electric trap, achieving densities up to 10$^7$/cm$^3$ at temperatures around 350 mK where the elastic dipolar cross-section exceeds 7$\times$10$^{-12}$cm$^2$. We measure inelastic rate constants below 4$\times$10$^{-8}$cm$^3$/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.<br />Comment: To be published in Physical Review Letters: https://journals.aps.org/prl/accepted/e5070Y42Cf013066f8871d5761f80f99fa8136ff5
- Subjects :
- Physics - Atomic Physics
Physics - Chemical Physics
Quantum Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 128, 203401 (2022)
- Publication Type :
- Report
- Accession number :
- edsarx.2204.12339
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.128.203401