Generation of high-purity low-temperature samples of K39 for applications in metrology

Generation of high-purity low-temperature samples of K39 for applications in metrology We present an all-optical technique to prepare a sample of K39 in a magnetically insensitive state with 95% purity while maintaining a temperature of 6 μK. This versatile preparation scheme is particularly well suited to performing matter-wave interferometry with species exhibiting closely separated hyperfine levels, such as the isotopes of lithium and potassium, and opens new possibilities for metrology with these atoms. We demonstrate the feasibility of such measurements by realizing an atomic gravimeter and a Ramsey-type spectrometer, both of which exhibit a state-of-the-art sensitivity for cold potassium. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review A American Physical Society (APS)

Generation of high-purity low-temperature samples of K39 for applications in metrology

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Generation of high-purity low-temperature samples of K39 for applications in metrology

Abstract

We present an all-optical technique to prepare a sample of K39 in a magnetically insensitive state with 95% purity while maintaining a temperature of 6 μK. This versatile preparation scheme is particularly well suited to performing matter-wave interferometry with species exhibiting closely separated hyperfine levels, such as the isotopes of lithium and potassium, and opens new possibilities for metrology with these atoms. We demonstrate the feasibility of such measurements by realizing an atomic gravimeter and a Ramsey-type spectrometer, both of which exhibit a state-of-the-art sensitivity for cold potassium.
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Publisher
American Physical Society (APS)
Copyright
Copyright © ©2017 American Physical Society
ISSN
1050-2947
eISSN
1094-1622
D.O.I.
10.1103/PhysRevA.96.023608
Publisher site
See Article on Publisher Site

Abstract

We present an all-optical technique to prepare a sample of K39 in a magnetically insensitive state with 95% purity while maintaining a temperature of 6 μK. This versatile preparation scheme is particularly well suited to performing matter-wave interferometry with species exhibiting closely separated hyperfine levels, such as the isotopes of lithium and potassium, and opens new possibilities for metrology with these atoms. We demonstrate the feasibility of such measurements by realizing an atomic gravimeter and a Ramsey-type spectrometer, both of which exhibit a state-of-the-art sensitivity for cold potassium.

Journal

Physical Review AAmerican Physical Society (APS)

Published: Aug 4, 2017

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