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Cold Atoms in Space: Community Workshop Summary and Proposed Road-Map

EPJ Quantum Technology(2022)SCI 2区SCI 3区

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Abstract
We summarise the discussions at a virtual Community Workshop on Cold Atoms in Space concerning the status of cold atom technologies, the prospective scientific and societal opportunities offered by their deployment in space, and the developments needed before cold atoms could be operated in space. The cold atom technologies discussed include atomic clocks, quantum gravimeters and accelerometers, and atom interferometers. Prospective applications include metrology, geodesy and measurement of terrestrial mass change due to, e.g., climate change, and fundamental science experiments such as tests of the equivalence principle, searches for dark matter, measurements of gravitational waves and tests of quantum mechanics. We review the current status of cold atom technologies and outline the requirements for their space qualification, including the development paths and the corresponding technical milestones, and identifying possible pathfinder missions to pave the way for missions to exploit the full potential of cold atoms in space. Finally, we present a first draft of a possible road-map for achieving these goals, that we propose for discussion by the interested cold atom, Earth Observation, fundamental physics and other prospective scientific user communities, together with the European Space Agency (ESA) and national space and research funding agencies.
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要点:本文总结了一个关于在太空中应用冷原子技术的虚拟社区研讨会的讨论结果,包括冷原子技术的现状、太空中的潜在科学和社会机遇,以及在冷原子能够在太空中应用之前需要开发的技术。讨论的冷原子技术包括原子钟、量子重力计和加速度计以及原子干涉仪。潜在的应用包括计量学、测地学以及由于气候变化等导致的地球质量变化的测量,还包括基础科学实验,如对等效原理、暗物质搜索、测量引力波和量子力学测试等。我们回顾了冷原子技术的当前状况,并概述了它们在太空适应性方面的需求,包括发展路径、相应的技术里程碑,以及确定为开拓冷原子在太空中全部潜力的任务的可能性。最后,我们提出了一个实现这些目标的初步路线图草案,希望与对冷原子、地球观测、基础物理学和其他潜在科学用户群感兴趣的人士以及欧洲航天局(ESA)和国家航天和研究资助机构共同讨论。

方法:总结冷原子技术在太空中的现状和潜力以及实现该目标所需的技术发展路径。

实验:将冷原子技术应用于太空中的可能性,包括测量和测试等领域,并提出了一个初步的路线图草案供讨论。