Atomic source selection in space-borne gravitational wave detection
Atomic source selection in space-borne gravitational wave detection
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DOI：
10.1088/1367-2630/ab22d0
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发表时间：
2018-12
影响因子：
3.3
通讯作者：
S. Loriani;D. Schlippert;C. Schubert;S. Abend;H. Ahlers;W. Ertmer;Jan Rudolph;J. Hogan;M. Kasevich;E. Rasel;N. Gaaloul
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文献类型：
--
作者：
S. Loriani;D. Schlippert;C. Schubert;S. Abend;H. Ahlers;W. Ertmer;Jan Rudolph;J. Hogan;M. Kasevich;E. Rasel;N. Gaaloul
最近提出的基于原子干涉测量的星载引力波探测器依赖于极窄的单光子跃迁线，如碱土金属或具有类似电子构型的原子物种所具有的特征。尽管这些物种相似，但它们在关键参数上存在差异，如同位素丰度、原子通量、密度和温度制度、可实现的膨胀率、相互作用设定的密度限制以及技术和操作要求。在这项研究中，我们比较了引力波探测和原子干涉测量的可行候选者，对比了最有希望的原子物种，确定了相关的技术里程碑，并研究了未来空间引力波探测器的潜在来源概念。
Recent proposals for space-borne gravitational wave detectors based on atom interferometry rely on extremely narrow single-photon transition lines as featured by alkaline-earth metals or atomic species with similar electronic configuration. Despite their similarity, these species differ in key parameters such as abundance of isotopes, atomic flux, density and temperature regimes, achievable expansion rates, density limitations set by interactions, as well as technological and operational requirements. In this study, we compare viable candidates for gravitational wave detection with atom interferometry, contrast the most promising atomic species, identify the relevant technological milestones and investigate potential source concepts towards a future gravitational wave detector in space.