Rostock 2019 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 58: Poster: Quantum Optics and Photonics III
Q 58.3: Poster
Donnerstag, 14. März 2019, 16:15–18:15, S Atrium Informatik
Single-pulse large momentum transfer with double Raman diffraction — •Sabrina Hartmann, Jens Jenewein, Albert Roura, Wolfgang P. Schleich, and the QUANTUS team — Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm
Large momentum transfer (LMT) pulses are a topic of current interest in atom interferometry since a large interferometric area leads to an increased sensitivity and are often realized by a multiple-pulse sequence [1]. Here we present a theoretical analysis of double Raman beam splitters in a retroreflective geometry. Specifically, we focus on a scheme that generates a momentum-space splitting of 12ℏk between both arms by a single pulse. Thus, the area is increased by two effects: double diffraction and higher-order diffraction. Moreover, we present a numerical study that investigates fidelity, diffraction efficiency and the influence of Stark shifts. Finally, we compare these results to already existing configurations using Bragg diffraction [2,3].
The QUANTUS project is supported by the German Space Agency DLR with funds provided by the Federal Ministry of Economics and Energy (BMWi) under grant number 50WM1556 (QUANTUS IV).
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