Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 54: Posters: Quantum Optics and Photonics IV
Q 54.18: Poster
Thursday, March 12, 2020, 16:30–18:30, Empore Lichthof
Efficient modeling and numerics for matter-wave beamsplitters in 3D — •Samuel Böhringer1, Alexander Friedrich1, Enno Giese1, and Wolfgang P. Schleich1,2 — 1Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm, Albert-Einstein-Allee 11, D-89069, Germany — 2Institut für Quantentechnologien, Deutsches Zentrum für Luft- und Raumfahrt, Söflinger Str. 100, D-89077 Ulm, Germany
Light-pulse atom interferometers have evolved into capable sensors for inertial and electromagnetic forces and are now routinely used to test the foundations of physics. Most matter-wave interferometers use Raman or Bragg diffraction in combination with large-momentum-transfer techniques for for atomic diffraction. Typically, beamsplitters have multiple sources of imperfection such as mirror vibrations, polarization imperfections or general imperfections in their optical beams. In order to analyze and quantify the consequences in detail, full 3d models of these processes are necessary. However, due to the interplay of multiple effects the analytic treatment becomes cumbersome. In order to gain a deeper understanding of these effects a numerical treatment is necessary and needs to be efficient. In our contribution we discuss the modeling of Raman diffraction with physical beam shapes and other imperfections of the lasers involved.
The QUANTUS project is supported by the German Aerospace Center (DLR) with funds provided by the Federal Ministry for Economic Affairs and Energy (BMWi) under grant number 50WM1956.