Towards a high-sensitivity mobile gravity-gradiometer
POSTER
Abstract
High-sensitivity gravity sensors based on cold-atom interferometry are a rapidly advancing area of research, with applications spanning from practical fields—such as gravity cartography, underground surveying, and geodesic studies—to fundamental research, including dark matter searches and tests of the equivalence principle.<br fgid="32414" />
In this work, we present the development of a vertical gravity-gradiometer designed for mobile applications. The gradiometric configuration is particularly well-suited for such environments due to its intrinsic robustness against vibrations. Our sensor employs a single-beam architecture for atom cooling, Raman pulses, and state detection, with a separation of 1 meter between atomic clouds.<br fgid="32406" />
The sensor was evaluated in both laboratory and field settings, where we identified strong sensitivity to dynamic tilts during the interferometric sequence. We discuss working point optimization, and methods of feedback for mitigation of the resultant phase noise.<br fgid="32398" />
In this work, we present the development of a vertical gravity-gradiometer designed for mobile applications. The gradiometric configuration is particularly well-suited for such environments due to its intrinsic robustness against vibrations. Our sensor employs a single-beam architecture for atom cooling, Raman pulses, and state detection, with a separation of 1 meter between atomic clouds.<br fgid="32406" />
The sensor was evaluated in both laboratory and field settings, where we identified strong sensitivity to dynamic tilts during the interferometric sequence. We discuss working point optimization, and methods of feedback for mitigation of the resultant phase noise.<br fgid="32398" />
Presenters
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Ran S Fischer
- Rafael Ltd.