Rostock 2019 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 58: Poster: Quantum Optics and Photonics III
Q 58.4: Poster
Donnerstag, 14. März 2019, 16:15–18:15, S Atrium Informatik
Analysis of atomic Bragg and Raman diffraction — •Eric P. Glasbrenner1, Alexander Friedrich1, Enno Giese1, Ernst M. Rasel2, and Wolfgang P. Schleich1 — 1Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm. — 2Institut für Quantenoptik, Leibniz Universität Hannover.
Light-pulse atom interferometry has become a standard tool for the realization of high-precision experiments and in quantum-sensing applications as well as tests of fundamental physics. Nowadays such interferometers rely on either Raman or Bragg diffraction, realized via a retro-reflective setup with two counter-propagating lasers. In order to analyze this arrangement it is necessary to use numerics on the one hand, and on the other appropriate asymptotic methods. In our poster we showcase an asymptotic approach, the canonical method of averaging which allows us to obtain analytical insights and results which compare well with our purely numerical considerations. Using these methods we analyze the light-shift contribution to the interferometer phase induced by off-resonant two-photon transitions in the presence of the AC-Stark shift and their dependence on the form of the pulse envelope.
The QUANTUS project is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry for Economic Affairs and Energy (BMWi) under grant number 50WM1556 (QUANTUS IV).