标题： 用于微重力下量子混合研究的装置 显示英文标题

标题： Apparatus for quantum-mixture research in microgravity

摘要： 实验使用超冷量子气体是一个迅速发展的研究领域，在基础物理和量子技术中有许多应用。 在这里，我们报告了一种使用完全集成的探空火箭装置高通量生成$^{41}$K 和$^{87}$Rb 的玻色-爱因斯坦凝聚物混合物。 我们研究了不同方向相对于重力的量子混合物的释放和自由膨胀。 释放动力学由混合物相互作用以及释放期间衰减的磁场所支配。 后者可以通过专用的陷阱生成电流关断协议来最小化，在此过程中一个精确的模型使我们能够表征相互作用效应。 我们的结果为在移动平台上生成超冷混合物建立了一个新基准，这对未来研究相互作用量子气体以及在太空中测试等效原理具有直接相关性。 显示英文摘要

摘要： Experiments with ultracold quantum gases are a rapidly advancing research field with many applications in fundamental physics and quantum technology. Here, we report on a high-flux generation of Bose-Einstein condensate mixtures of $^{41}$K and $^{87}$Rb, using a fully integrated sounding rocket setup. We investigate the release and the free expansion of the quantum mixtures for different orientations to gravity. The release dynamics are governed by the mixture interactions as well as the decaying magnetic field during the release. The latter can be minimized by a dedicated switch-off protocol of the trap generating currents where an exact model enabled us to characterize the interaction effects. Our results establish a new benchmark for generating ultracold mixtures on mobile platforms, with direct relevance for future experiments on interacting quantum gases and tests of the equivalence principle in space.