Microgravity eases several constraints limiting experiments with ultracold and condensed atoms on ground. It enables extended times of flight without suspension and eliminates the gravitational sag for trapped atoms. These advantages motivated numerous initiatives to adapt and operate experimental setups on microgravity platforms. We describe the design of the payload, motivations for design choices, and capabilities of the Bose-Einstein Condensate and Cold Atom Laboratory (BECCAL), a NASA-DLR collaboration. BECCAL builds on the heritage of previous devices operated in microgravity, features rubidium and potassium, multiple options for magnetic and optical trapping, different methods for coherent manipulation, and will offer new perspectives for experiments on quantum optics, atom optics, and atom interferometry in the unique microgravity environment on board the International Space Station.

中文翻译：

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玻色-爱因斯坦冷凝物和冷原子实验室

微重力减轻了一些限制，这些限制限制了地面上超冷和凝聚原子的实验。它可以延长飞行时间而不会产生悬浮，并且消除了被俘获原子的重力下垂。这些优势激发了许多倡议，以适应和操作微重力平台上的实验装置。我们描述了有效载荷的设计，设计选择的动机以及Bose-Einstein冷凝物和冷原子实验室（BECCAL）（NASA-DLR合作）的功能。BECCAL继承了以前在微重力下运行的设备的传统，具有rub和钾，磁和光阱的多种选择，相干操纵的不同方法，并将为量子光学，原子光学，