Freiburg 2019 – wissenschaftliches Programm

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FM: Fall Meeting

FM 41: Poster: Quantum Sensing

FM 41.27: Poster

Dienstag, 24. September 2019, 16:30–18:30, Tents

Some practical considerations of quantum inertial sensors in navigation — •Benjamin Tennstedt and Steffen Schön — Institut für Erdmessung, Leibniz Universität Hannover, 30167 Hannover

In this contribution we will present some application cases for atom interferometry as an inertial sensor for navigation purposes. While there are more complex attempts for a six-degrees of freedom setup [2], which have not yet been realized and tested in a navigation filter framework, a simple setup of two counterpropagating interferometers, eg. [3], is already sufficient for specific navigation purposes like estimating the 2D-position and orientation of a non-holonomic vehicle on a plane, like it is the case with driverless transportation vehicles.

For 3D-navigation, additional supporting sensors are needed. By using error models based on real data [4] and our navigation simulation framework, we will point out some concrete examples and use-cases of the proposed setup in navigation, while also giving a hint on the specifications like sensitivity and stability the new sensors need to provide.

[1] M. Kasevich and S. Chu (1991), Atomic interferometry using stimulated Raman transitions, Phys. Rev. Lett. 67, pp. 181-184.

[2] B. Canuel et al. (2006), Six-axis inertial sensor using cold-atom interferometry, Phys. Rev. Lett. 97, 010402:1-010402:4.

[3] A. Gauguet et al. (2009), Characterization and limits of a cold atom Sagnac interferometer, <hal-00403630v3>.

[4] P. Berg et al. (2015), Composite-Light-Pulse Technique for High-Precision Atom Interferometry, Phys. Rev. Lett. 114, 063002.