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          Institute: Fritz-Haber-Institut     Collection: Molecular Physics     Display Documents



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ID: 433125.0, Fritz-Haber-Institut / Molecular Physics
Nonadiabatic transitions in electrostatically trapped ammonia molecules
Authors:Kirste, Moritz; Sartakov, Boris G.; Schnell, Melanie; Meijer, Gerard
Language:English
Date of Publication (YYYY-MM-DD):2009-05-27
Title of Journal:Physical Review A, Rapid Comm.
Journal Abbrev.:Phys. Rev. A, Rapid Comm.
Volume:79
Issue / Number:5
Start Page:051401-1
End Page:051401-4
Copyright:© 2009 The American Physical Society
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Nonadiabatic transitions are known to be major loss channels for atoms in magnetic traps but have thus far not been experimentally reported upon for trapped molecules. We have observed and quantified losses due to nonadiabatic transitions for three isotopologues of ammonia in electrostatic traps by comparing the trapping times in traps with a zero and a nonzero electric field at the center. Nonadiabatic transitions are seen to dominate the overall loss rate even for the present samples that are at relatively high temperatures of 30 mK. It is anticipated that losses due to nonadiabatic transitions in electric fields are omnipresent in ongoing experiments on cold molecules.
Free Keywords:ammonia, energy level crossing, laser cooling, molecule-photon collisions, radiation pressure
External Publication Status:published
Document Type:Article
Communicated by:Gerard Meijer
Affiliations:Fritz-Haber-Institut/Molecular Physics
External Affiliations:General Physics Institute, RAS, Vavilov Street 38, 119991 Moscow, Russia
Identifiers:URL:http://link.aps.org/doi/10.1103/PhysRevA.79.051401
DOI:10.1103/PhysRevA.79.051401
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