Long rotational coherence times of molecules in a magnetic trap
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Author(s)
Type
Journal Article
Abstract
Polar molecules in superpositions of rotational states exhibit long-range dipolar interactions, but maintaining their coherence in a trapped sample is a challenge. We present calculations that show many laser-coolable molecules have convenient rotational transitions that are exceptionally insensitive to magnetic fi elds. We verify this experimentally for CaF where we find a transition with sensitivity below 5 HzG‾¹ and use it to demonstrate a rotational coherence time of 6.4(8) ms in a magnetic trap. Simulations suggest it is feasible to extend this to > 1 s using a smaller cloud in a
biased magnetic trap.
biased magnetic trap.
Date Acceptance
2019-12-17
Citation
Physical Review Letters, 124 (6)
ISSN
0031-9007
Publisher
American Physical Society
Journal / Book Title
Physical Review Letters
Volume
124
Issue
6
Copyright Statement
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
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Sponsor
Engineering & Physical Science Research Council (E
Engineering and Physical Sciences Research Council
Engineering and Physical Sciences Research Council
Grant Number
RF040529
EP/M027716/1
EP/I012044/1
Subjects
physics.atom-ph
physics.atom-ph
General Physics
02 Physical Sciences
Publication Status
Published
Article Number
ARTN 063001
Date Publish Online
2020-02-10