Spacetime information platform using a cloud of optical lattice clocks

  • 1.5 Quantum interdisciplinary sciences(Life science, Mathematics, Particle physics, Space science, Astronomy, Quantum gravity, etc.)
  • 2.1 Quantum bits, memories, devices(Superconducting circuits, Ion trapping, Trapped cold atoms, Photons, Quantum dots, etc.)
  • 2.2 Quantum sensing(Quantum metrology/Sensing/Imaging, Optical lattice clocks)
Hidetoshi Katori
Graduate School of Engineering
In this research, we will develop a space-time information platform by networking “optical lattice clocks”, which improved the uncertainty of the atomic clocks used in GNSS (Global Navigation Satellite System) by three orders of magnitude. This platform will benefit future high-capacity network systems, navigation, and other services.
A future information platform by networking of “optical lattice clocks”
A transportable optical lattice clock system

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Research collaborators

NTT Basic Research Laboratories
Shimadzu Technology Research Laboratory
Graduate School of Science The University of Tokyo
National Institute of Advanced Industrial Science and Technology
National Institute of Information and Communications Technology
The University of Electro-Communications

Related publications

M. Takamoto et al., Nature Photonics (2020), DOI Number: 10.1038/s41566-020-0619-8.
S. Okaba et al., Commun. Physics 2, 136-1-10 (2019).
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