Second-scale nuclear spin coherence time of ultracold <sup>23</sup> Na <sup>40</sup> K molecules
Name
1606.04184.pdf
Description
Submitted version
Size
5.35 MB
Format
Unknown
Checksum (MD5)
e8913a167d6244c5ff2402f49333ff6d
Author(s)
Park, Jee Woo
Yan, Zoe Z.
Loh, Huanqian
Will, Sebastian A.
Zwierlein, Martin W.
Date Issued
July 2017
Journal
Science
Publisher
American Association for the Advancement of Science (AAAS)
Version
Original manuscript
Abstract
© 2017, American Association for the Advancement of Science. All rights reserved. Coherence, the stability of the relative phase between quantum states, is central to quantum mechanics and its applications. For ultracold dipolar molecules at sub-microkelvin temperatures, internal states with robust coherence are predicted to offer rich prospects for quantum many-body physics and quantum information processing. We report the observation of stable coherence between nuclear spin states of ultracold fermionic sodium-potassium (NaK) molecules in the singlet rovibrational ground state. Ramsey spectroscopy reveals coherence times on the scale of 1 second; this enables high-resolution spectroscopy of the molecular gas. Collisional shifts are shown to be absent down to the 100-millihertz level. This work opens the door to the use of molecules as a versatile quantum memory and for precision measurements on dipolar quantum matter.
Subjects
Multidisciplinary
MIT Department
MIT-Harvard Center for Ultracold Atoms
Massachusetts Institute of Technology. Research Laboratory of Electronics
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1126/science.aal5066
