Physics at Virginia

"Moving Beyond Scalar Quantum Sensing with Cold-Atom Interferometers"

Brynle Barrett , University of New Brunswick
[Host: Cass Sackett]

Robust and accurate acceleration tracking remains a challenge in many fields. For geophysics and economic geology, precise gravity mapping requires onboard sensors combined with accurate positioning and navigation systems. Cold-atom-based quantum inertial sensors can provide such high-precision instruments. However, current scalar instruments require precise alignment with vector quantities such as gravity. This presents a significant challenge in mobile environments. In recent work, we realized the first “vectorial” quantum accelerometer by combining three orthogonal atom interferometer measurements with a classical accelerometer triad. We demonstrate acceleration vector tracking with a 50-fold improvement in stability compared to our navigation-grade classical accelerometers. In this talk, I will give an overview of our vectorial quantum sensor and discuss future work moving beyond scalar quantum sensing.

Atomic Physics Seminar
Monday, November 7, 2022
4:00 PM
Chemistry Building, Room 206
Note special time.
Note special room.

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