Erlangen 2018 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 22: Matter Wave Optics II
Q 22.2: Talk
Monday, March 5, 2018, 16:30–16:45, K 1.013
Polarization and mirror imperfections in retroreflective Raman– and Bragg diffraction — •Alexander Friedrich1, Eric P. Glasbrenner1, Enno Giese2, Wolfgang P. Schleich1, and Ernst M. Rasel3 — 1Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm, D–89069 Ulm. — 2Department of Physics, University of Ottawa, K1N 6N5 Ottawa. — 3Institut für Quantenoptik, Leibniz Universität Hannover, D–30167 Hannover.
Light–pulse atom interferometry has become a formidable tool for high precision
applications in quantum sensing and tests of fundamental physics. Nowadays
interferometers of this type rely on either Bragg– or Raman diffraction for the
beamsplitting process. Retroreflective setups with two counterpropagating
lattices reduce the effect of wave–front distortions and mirror vibrations.
However, as the miniaturization of atom interferometers progresses, even
imperfect mirrors such as the atom chip surface may serve as a retroreflection
mirror in typical experiments. In our talk we introduce a model to quantify the
influence of non–perfect polarization orientation and mirrors on the
diffraction of a matter wave inside such a retroreflective geometry.
A.F. thanks the Center for Integrated Quantum Science and Technology
(IQST) and the QUANTUS collaboration for funding.
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.