arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1812.11348physics.atom-phastro-ph.IMquant-ph
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星载引力波探测中的原子源选择

Atomic source selection in space-borne gravitational wave detection

S Loriani, D Schlippert, C Schubert, S Abend, H Ahlers, W Ertmer, J Rudolph, J M Hogan, M A Kasevich, E M Rasel, N Gaaloul

摘要:

最近提出的基于原子干涉的星载引力波探测器依赖于碱土金属或具有类似电子构型的原子物种的极窄单光子跃迁线。尽管它们相似,但这些物种在关键参数上有所不同,如同位素丰度、原子通量、密度和温度状况、可实现的膨胀率、相互作用所设定的密度限制以及技术和操作要求。在这项研究中,我们比较可行的候选人引力波探测与原子干涉,对比最有前途的原子种类,确定相关的技术里程碑,并调查潜在的源概念,未来的空间引力波探测器。

英文摘要:

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.

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