Multi-axis inertial sensing with 2D arrays of Bose Einstein Condensates

verfasst von
K. Stolzenberg, C. Struckmann, S. Bode, R. Li, A. Herbst, V. Vollenkemper, D. Thomas, E. M. Rasel, N. Gaaloul, D. Schlippert

Atom interferometers are an exquisite measurement tool for inertial forces. However, they are commonly limited to one single sensitive axis, allowing high-precision multi-dimensional sensing only through subsequent or postcorrected measurements. Here, we introduce a novel 2D-array-arrangement of Bose-Einstein Condensates (BEC) initialized utilizing time-averaged optical potentials for simultaneous multi-axis inertial sensing. Deploying a 3 x 3 BEC array covering 1.6 mm^2, we perform measurements of angular velocity and acceleration of a rotating reference mirror, as well as a linear acceleration, e.g., induced by gravity, gradients, and higher order derivatives. We anticipate increased sensitivity of our method in interferometers with large scale factors in long-baseline or satellite atom interferometry. Our work paves the way for simple high-precision multi-axis inertial sensing and we envision further applications, e.g., for three-dimensional wave front characterization.

Guided Matter Wave Interferometry
Quantum Sensing
Laboratorium für Nano- und Quantenengineering
Institut für Quantenoptik
QUEST Leibniz Forschungsschule
SFB 1464: Relativistische und quanten-basierte Geodäsie (TerraQ)
SFB 1227: Designte Quantenzustände der Materie (DQ-mat)
Elektronisch veröffentlicht (E-Pub)