Searching for parity violation with the LIGO-Virgo-KAGRA network

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12 Citations (Scopus)


A stochastic gravitational-wave background is expected to emerge from the superposition of numerous gravitational-wave sources of both astrophysical and cosmological origin. A number of cosmological models can have a parity violation, resulting in the generation of circularly polarized gravitational waves. We present a method to search for parity violation in the gravitational-wave data. We first apply this method to the most recent, third, LIGO-Virgo observing run. We then investigate the constraining power of future A+LIGO-Virgo detectors, including KAGRA to the network, for a gravitational-wave background generated by early universe cosmological turbulence.

Original languageEnglish
Article numberL081101
JournalPhysical Review D
Issue number8
Publication statusPublished - 15 Oct 2021


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