SAMOP 2023 – scientific programme
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A: Fachverband Atomphysik
A 32: Precision Measurements: Atom Interferometry II (joint session Q/A)
A 32.1: Talk
Friday, March 10, 2023, 14:30–14:45, F342
INTENTAS - Interferometry with entangled atoms in space — Jan Simon Haase1, •Janina Hamann1, Jens Kruse2, and Carsten Klempt1,2 — 1Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover — 2DLR Institut für Satellitengeodäsie und Inertialsensorik, Callinstr. 30b, 30167 Hannover
Atom interferometers are high-precision measurement devices for the sensing of inertial moments as accelerations and rotations. A zero-gravity environment enables prolonged interrogation time and consequently a higher resolution. Therefore, space-borne atom interferometers promise unprecedented resolution for a wide range of applications from geodesy to fundamental tests.
A fundamental limit for their precision is the Standard Quantum Limit (SQL), which determines a limit for the interferometric resolution. The SQL can only be surpassed by using entangled ensembles of atoms as a source for the interferometer.
The goal of the INTENTAS project (Interferometry with entangled atoms in space), which will be presented in this talk, is to demonstrate a compact source of entangled atoms in the Einstein-Elevator, a microgravity platform which allows zero-gravity tests for up to 4 s. The planned experiments will pave the way to employ entangled atomic sources for high-precision interferometry in space applications.