Spherical harmonic analysis of anisotropies in polarized stochastic gravitational wave background with interferometry experiments
arXiv:2002.01606 · doi:10.1103/PhysRevD.103.063528
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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