SAMOP 2021 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 13: Ultra-cold atoms, ions, and BEC (joint session A/Q)
Q 13.9: Poster
Mittwoch, 22. September 2021, 16:30–18:30, P
Quantum Gas Magnifier for sub-lattice-resolved imaging of 3D systems — •Luca Asteria1, Henrik P. Zahn1, Marcel N. Kosch1, Klaus Sengstock1,2,3, and Christof Weitenberg1,2 — 1Institut for Laserphysics, Hamburg — 2The Hamburg Centre for Ultrafast Imaging — 3Zentrum für Optische Quantentechnologien, Hamburg
Imaging is central for gaining microscopic insight into physical systems, but direct imaging of ultracold atoms in optical lattices as modern quantum simulation platform suffers from the diffraction limit as well as high optical density and small depth of focus. We introduce a novel approach to imaging of quantum many-body systems using matter wave optics to magnify the density distribution prior to optical imaging, allowing sub-lattice spacing resolution in three-dimensional systems. Combining the site-resolved imaging with magnetic resonance techniques for local addressing of individual lattice sites, we demonstrate full accessibility to local information and local manipulation in three-dimensional optical lattice systems. The method opens the path for spatially resolved studies of new quantum many-body regimes including exotic lattice geometries.