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题名: Low-frequency gravitational wave detection via double optical clocks in space
作者: Su, Jianfeng; Wang, Qiang; Wang, Qinghua; Jetzer, Philippe
作者部门: 空间技术部
通讯作者: Su, Jianfeng ; Wang, Qiang ; Wang, Qinghua ; Jetzer, Philippe
关键词: Doppler tracking system ; gravitational waves ; DOCS
刊名: CLASSICAL AND QUANTUM GRAVITY
ISSN号: 0264-9381
出版日期: 2018
卷号: 35, 期号:8, 页码:85010
收录类别: SCI
项目资助者: project 'Research on space-time structure of the universe by space-based optical clocks' [XDA15007702] ; National Space Science Center, The Chinese Academy of Sciences
英文摘要: We propose a Doppler tracking system for gravitational wave detection via double optical clocks in space (DOCS). In this configuration two spacecrafts (each containing an optical clock) are launched to space for Doppler shift observations. Compared to the similar attempt of gravitational wave detection in the Cassini mission, the radio signal of DOCS that contains the relative frequency changes avoids completely noise effects due for instance to troposphere, ionosphere, ground-based antenna and transponder. Given the high stabilities of the two optical clocks (Allan deviation similar to 4.1 x 10(-17) @ 1000 s), an overall estimated sensitivity of 5 x 10(-19) could be achieved with an observation time of 2 yr, and would allow to detect gravitational waves in the frequency range from similar to 10(-4) Hz to similar to 10(-2) Hz.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/6242
Appears in Collections:空间技术部_期刊论文

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