Large Momentum Transfer Clock Atom Interferometry on the 689 nm Intercombination Line of Strontium

Jan Rudolph, Thomas Wilkason, Megan Nantel, Hunter Swan, Connor M. Holland, Yijun Jiang (姜一君), Benjamin E. Garber, Samuel P. Carman, and Jason M. Hogan
Phys. Rev. Lett. 124, 083604 – Published 28 February 2020

Abstract

We report the first realization of large momentum transfer (LMT) clock atom interferometry. Using single-photon interactions on the strontium S10P31 transition, we demonstrate Mach-Zehnder interferometers with state-of-the-art momentum separation of up to 141k and gradiometers of up to 81k. Moreover, we circumvent excited state decay limitations and extend the gradiometer duration to 50 times the excited state lifetime. Because of the broad velocity acceptance of the interferometry pulses, all experiments are performed with laser-cooled atoms at a temperature of 3μK. This work has applications in high-precision inertial sensing and paves the way for LMT-enhanced clock atom interferometry on even narrower transitions, a key ingredient in proposals for gravitational wave detection and dark matter searches.

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  • Received 11 October 2019
  • Accepted 2 January 2020

DOI:https://doi.org/10.1103/PhysRevLett.124.083604

© 2020 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Jan Rudolph1,*, Thomas Wilkason1, Megan Nantel2, Hunter Swan1, Connor M. Holland1, Yijun Jiang (姜一君)2, Benjamin E. Garber1, Samuel P. Carman1, and Jason M. Hogan1,†

  • 1Department of Physics, Stanford University, Stanford, California 94305, USA
  • 2Department of Applied Physics, Stanford University, Stanford, California 94305, USA

  • *jan.rudolph@stanford.edu
  • hogan@stanford.edu

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Vol. 124, Iss. 8 — 28 February 2020

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