21–26 Jun 2026
U. Ottawa - Learning Crossroads (CRX) Building
America/Toronto timezone
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Progress Toward Canada’s First Portable Quantum Gravimeter

22 Jun 2026, 14:15
30m
U. Ottawa - Learning Crossroads (CRX) Building

U. Ottawa - Learning Crossroads (CRX) Building

100 Louis-Pasteur Private, Ottawa, ON K1N 9N3
Oral (Non-Student) / Orale (non-étudiant(e)) Atomic, Molecular and Optical Physics, Canada / Physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC) (DAMOPC) M2-11 | (DPAMPC)

Speaker

Prof. Brynle Barrett (University of New Brunswick)

Description

Absolute gravimeters based on falling corner-cube reflectors have been a cornerstone of geophysical research and exploration for decades. On the other hand, quantum gravimeters use matter-wave interferometry with a free-falling cloud of laser-cooled atoms to measure gravity down to the $10^{-9}$ g level. These instruments have demonstrated excellent sensitivity and stability over several months, making them ideal for detecting low-frequency gravity signals. Commercial quantum gravimeters are now available on the market, but there has been surprisingly little work to develop them in Canada. In this talk, I will discuss progress toward building Canada’s first portable quantum gravimeter at the University of New Brunswick. I will also provide an overview of its functionality and its key advantages over traditional technologies for applications in geophysics and geodesy.

Keyword-1 Quantum Sensing
Keyword-2 Atom Interferometry
Keyword-3 Laser Cooling and Trapping

Author

Prof. Brynle Barrett (University of New Brunswick)

Presentation materials

There are no materials yet.