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arXiv · 2002.01606

Spherical harmonic analysis of anisotropies in polarized stochastic gravitational wave background with interferometry experiments

Yu-Kuang Chu·Guo-Chin Liu·Kin-Wang Ng
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Abstract

We study the interferometric observation of intensity and polarization anisotropies of a stochastic gravitational wave background (SGWB). We show that the observed correlated data is defined in the group manifold of the three-dimensional rotation. Explicit correlation between two detectors in the interferometry experiments such as LIGO-Virgo and KAGRA is constructed in terms of the Wigner D-functions. Our results may provide a tool for constructing data pipelines to estimate the power spectra of the SGWB anisotropies.

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Yu-Kuang Chu, Guo-Chin Liu, Kin-Wang Ng. 2020-02-05. Spherical harmonic analysis of anisotropies in polarized stochastic gravitational wave background with interferometry experiments. https://doi.org/10.1103/physrevd.103.063528

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