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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).
T. Lévèque, et al. Phys. Rev. Lett. 103, 080405 (2009).
E. Giese, et al. Phys. Rev. A 88, 053608 (2013).
H. Ahlers, et al. Phys. Rev. Lett. 116, 173601 (2016).