Freiburg 2024 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 45: Quantum Metrology for Fundamental Physics

Q 45.6: Talk

Thursday, March 14, 2024, 12:30–12:45, HS 1221

Theory of multi-axis atom interferometric sensing for inertial navigation — •Christian Struckmann, Knut Stolzenberg, Dennis Schlippert, and Naceur Gaaloul — Leibniz University Hannover, Institute of Quantum Optics, Welfengarten 1, 30167 Hannover, Germany

Quantum sensors based on the interference of matter waves provide an exceptional measurement tool for inertial forces, and are considered next generation accelerometers for applications in geodesy, navigation, or fundamental physics due to the absence of drifts. However, conventional atom interferometers are only able to measure inertial forces along one single axis, resulting in one acceleration and one rotation component. To determine the motion of a moving body, an inertial measurement unit needs to measure the acceleration and rotation of the body along three perpendicular directions. Extending this atom interferometeric measurement scheme to multiple components would normally require the subsequent measurement along a differently oriented axis.

In this contribution, we present our theory and simulation efforts based on experimental schemes enabling three dimensional sensing using simultaneously operated single-axis atom interferometers. We detail the sensitivity and dimensionality scaling of the measurement as well as its potential and improvement avenues.

This work is supported by DLR funds from the BMWi (50WM2263A-CARIOQA-GE and 50WM2253A-(AI)^2).

Keywords: Atom Interferometry; Inertial sensing; Navigation; Multi-axis sensing; Gyroscope