Bonn 2025 – scientific programme
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A: Fachverband Atomphysik
A 9: Poster – Ultra-cold Atoms, Ions and BEC (joint session A/Q)
A 9.15: Poster
Tuesday, March 11, 2025, 14:00–16:00, Tent
2D matter wave array for gyroscopy — •Daida Thomas, Knut Stolzenberg, Sebastian Bode, Alexander Herbst, Wei Liu, Ernst M Rasel, Naceur Gaaloul, and Dennis Schlippert — Institut für Quantenoptik, Leibniz universität hannover, Welfengarten 1, 30167 Hannover
Interferometers based on matter-waves offer significant advantages in inertial sensing due to their exceptional long-term stability and sensitivity. Using 2D matter-wave arrays as input, simultaneous Mach-Zehnder like interferometers capable of measuring rotations and accelerations has recently been demonstrated. We describe a modification of this scheme by applying initial velocities to the columns of the array, thereby enabling the matter waves to span a Sagnac area. This allows for differential readout of the sagnac phase of the parallelized interferometers, showing a linear dependency on the rotation rate. The conjugate interferometers also provide robustness to environmental noise by suppressing common-mode noise, including vibrations and external perturbations. This system could achieve sensitivity in the order of 10−5 rad/s making it a good canditate for precise inertial measurements, highlighting its potential for applications in navigation, geophysics, and fundamental physics tests.
Keywords: Matter Waves; Sagnac interferometry; Rotation Sensitivity