Rostock 2019 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 30: Matter Wave Optics
Q 30.3: Talk
Wednesday, March 13, 2019, 11:15–11:30, S SR 211 Maschb.
Diffractive focusing of interacting matter waves — •Patrick Boegel1, Matthias Meister1, Jan-Niclas Siemß2,3, Naceur Gaaloul3, Maxim Efremov1, and Wolfgang P. Schleich1 — 1Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm — 2Institut für Theoretische Physik, Leibniz Universität Hannover, Germany — 3Institut für Quantenoptik, Leibniz Universität Hannover,Germany
A common way to control the position and the size of maximal focusing of a matter-wave is to use a lens which imprints a position-dependent phase on the initial wave. However, quantum mechanics allows focusing even without a lens [1,2], based on diffractive focusing, where the initial wave function is a real-valued one. Hence, the optimal focusing relies on a smart choice of this initial wave function [3]. We explore the phenomenon of diffractive focusing of an atomic Bose-Einstein Condensate (BEC) in the regime, where the resonant atom-atom interaction plays a key role.
This project is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry for Economic Affairs and Energy (BMWi) under the Grant No. 50WP1705.
[1] Case, W.B. et al. Optics Express 20, 27253 (2012)
[2] Weisman D. et al. Phys. Rev. Lett. 118, 154301 (2017)
[3] Vogel, K. et al., Chem. Phys. 375, 133-143 (2010)