Field deployable atomics package for an optical lattice clock

Yogeshwar Kale, Alok Singh, Markus Gellesch, Jonathan Jones, David Morris, Matthew Aldous, Kai Bongs, Yeshpal Singh

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An atomics package is the heart of any atom based quantum sensing device. Here we report on the realisation of a field deployable atomics package for alkaline earth atoms, e.g. Sr or Yb. In terms of size (~ 121 L), weight (< 75 kg) and power (~ 320 W), it is the smallest package to date which is designed to load Sr atoms into an optical lattice. It consists of an ultra-high vacuum assembly (< 4 L), lasers, magnetic field coils & optics required for cooling & trapping as well as a module for imaging & detection. The package can routinely produce ultra cold and dense samples of 1.6×105 88Sr atoms trapped in a 1D optical lattice in less than a second. Its robustness has been demonstrated by conducting two transportation campaigns within out-of-the-lab environments. This advancement will have impact not only on transportable optical clock development but also will influence the wider areas of quantum science and technologies, particularly requiring field deployable cold atom based quantum sensors.
Original languageEnglish
Article number045004
Number of pages12
JournalIOP Quantum Science and Technology
Issue number4
Publication statusPublished - 5 Jul 2022

Bibliographical note

Funding Information:
Authors acknowledge the funding from the UK Defence Science and Technology Laboratory (DSTLX-1000095040) and the Quantum Hub for Sensors and Metrology (EPSRC funding within Grant EP/M013294/1). The contents include material subject to Dstl Crown copyright 2022. ©

Publisher Copyright:
© 2022 The Author(s). Published by IOP Publishing Ltd.


  • optical lattice clock
  • Quantum technology
  • field deployable
  • strontium
  • Ultracold atoms
  • quantum technology
  • ultra-cold atoms

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering
  • Materials Science (miscellaneous)
  • Physics and Astronomy (miscellaneous)


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