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Multi-Axis Inertial Sensing with 2D Matter-Wave Arrays
K Stolzenberg1, C Struckmann1, S Bode1
1Leibniz Universität Hannover, Institut für Quantenoptik, Welfengarten 1, 30167 Hannover, Germany.
Physical Review Letters
|April 25, 2025
Summary
This study introduces a new multi-axis inertial sensing method using correlated Bose-Einstein condensates (BECs). This technique enables simultaneous high-precision measurements along multiple axes, advancing inertial navigation systems.
Area of Science:
- Quantum physics
- Metrology
- Atomic physics
Background:
- Atom interferometry is a precise measurement technique for inertial forces.
- Current methods are often limited to single-axis sensing, requiring complex post-processing for multidimensional data.
- High-precision multidimensional sensing is crucial for advanced navigation and scientific measurements.
Purpose of the Study:
- To develop a novel method for multi-axis inertial sensing.
- To overcome the single-axis limitation of traditional atom interferometry.
- To enable simultaneous high-precision measurements in multiple dimensions.
Main Methods:
- Utilizing correlated simultaneous light-pulse atom interferometers.
- Employing a scalable 3x3 array of Bose-Einstein condensates (BECs) in a 2D arrangement.
- Creating the BEC array using time-averaged optical potentials.
Main Results:
- Demonstrated simultaneous measurement of linear acceleration (gravity) and angular velocity/acceleration.
- Showcased sensitivity to gravity gradients and higher-order derivatives.
- Successfully implemented multi-axis inertial sensing with a 3x3 BEC array.
Conclusions:
- The novel method enables simple, high-precision multi-axis inertial sensing.
- The technique is compatible with high rotation rates, suitable for dynamic inertial navigation.
- Potential applications include 3D in situ measurements and wavefront reconstruction.
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