不等臂长条件下时间延迟干涉法的最优灵敏度曲线  

Optimal sensitivity for unequal arm time-delay interferometry

作　　者：黎志相 矫佳庚 石浚希 赖景祺 田雨 LI Zhixiang;JIAO Jiageng;SHI Junxi;LAI Jingqi;TIAN Yu(School of Fundamental Physics and Mathematical Sciences,Hangzhou Institute for Advanced Study,UCAS,Hangzhou,Zhejiang,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing,China;Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing,China;International Centre for Theoretical Physics Asia-Pacific,University of Chinese Academy of Sciences,Beijing,China)

机构地区：[1]中国科学院大学杭州高等研究院基础物理与数学学院,浙江杭州 [2]中国科学院大学物理科学学院,北京 [3]中国科学院理论物理研究所,北京 [4]中国科学院大学国际理论物理中心(亚太地区),北京

出　　处：《北京师范大学学报（自然科学版）》2024年第3期310-319,共10页Journal of Beijing Normal University(Natural Science)

基　　金：国家重点研发计划资助项目(2020YFC2201300);国家自然科学基金资助项目(11975235,12035016,12375058)。

摘　　要：发展了一种新算法,其能够不依赖于时间延迟干涉法基底构型的正交化过程,可直接得到最优灵敏度曲线;分别将其应用到第1代和第2代时间延迟干涉法.结果表明:尽管受不等臂长模型和不同基底选择的影响,但是最优灵敏度曲线仍展现出良好的鲁棒性;基底数量对最优灵敏度曲线有显著影响,当基底数由3增加到5时,灵敏度曲线获得了显著的优化,其中基底数为3时,在0.0010.100 Hz引力波频段内,不同基底的选择对最优灵敏度曲线影响较为显著.A new algorithm can obtain optimal sensitivity curves directly,without relying on time-delay interferometry configuration orthogonalization process.When applied to both first-and second-generation time-delay interferometry,the sensitivity curves remain robust under various arm lengths and baseline configurations.When the base number is increased from 3 to 5,the sensitivity curve is significantly optimized.With only three bases and within the frequency range of 0.001 to 0.100 Hz,the selection of specific bases affects the performance of optimal sensitivity curve.

关 键 词：时间延迟干涉法 引力波 灵敏度曲线 正交性破缺 

分 类 号：O41[理学—理论物理]