论文标题

用MHz带中的心形探测器网络测量重力波背景的均等不对称性

Measuring Parity Asymmetry of Gravitational Wave Backgrounds with a Heliocentric Detector Network in the mHz Band

论文作者

Seto, Naoki

论文摘要

我们通过相关分析来讨论各向同性引力波背景附近1 MHz的探索,以奇偶校验奇数甚至极化模式。即使空间干涉仪仅丽莎(Lisa)仅由于取消而无法探测这两种模式,但通过强烈的其他空间探测器(例如太极拳)的强劲发展,前景正在彻底改变。实际上,地中心的干涉仪网络具有可取的几何对称性(由Sun的虚拟球体照明}。通过利用数据流的内部对称性,我们可以在相关分析中最佳地分解奇数甚至奇偶校验模式。通过同时使用Lisa和Taiji持续了10年,我们对两种模式的敏感性就可以在归一化的能量密度方面达到$ \ sim 10^{ - 12} $。

We discuss exploration for isotropic gravitational wave backgrounds around 1 mHz by correlation analysis, targeting both parity odd and even polarization modes. Even though the space interferometer LISA alone cannot probe the two modes due to cancellations, the outlook is being changed drastically by the strong development of other space detectors such as Taiji. In fact, a heliocentric interferometer network holds a preferable geometrical symmetry {illuminated by a virtual sphere off-center from the Sun}. By utilizing an internal symmetry of data streams, we can optimally decompose the odd and even parity modes at correlation analysis. By simultaneously using LISA and Taiji for 10 years, our sensitivity to the two modes could reach $\sim 10^{-12}$ in terms of the normalized energy density.

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