用于三维量子系统亚晶格分辨成像的量子气体放大器
Quantum gas magnifier for sub-lattice-resolved imaging of three-dimensional quantum systems
摘要：
成像是获得物理系统微观洞察的核心，但是作为现代量子模拟平台的光晶格中的超冷原子的直接成像受到衍射极限以及高光密度和小焦深的影响。我们介绍了一种新的方法来成像的量子多体系统，使用物质波光学放大的密度分布之前，光学成像，允许在三维系统中的亚晶格间距分辨率。结合磁共振技术的个别晶格网站的本地寻址的站点分辨成像，我们展示了充分的访问本地信息和本地操作的三维光晶格系统。该方法开辟了新的量子多体制度，包括奇异的晶格几何的空间分辨研究的道路。
英文摘要：
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.
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