# Observational verification of CPT invariance with binary black hole gravitational waves in the LIGO-Virgo catalog GWTC-1

@article{Wang2020ObservationalVO, title={Observational verification of CPT invariance with binary black hole gravitational waves in the LIGO-Virgo catalog GWTC-1}, author={Sai Wang and Zhi-Chao Zhao}, journal={arXiv: General Relativity and Quantum Cosmology}, year={2020} }

A discovery of gravitational waves from binary black hole coalescences, reported by the LIGO Scientific and Virgo Collaborations, raises a possibility that measurements of them can provide strict verification of the fundamental laws of physics. We perform such an observational verification of CPT invariance in gravitational waves in this study. When CPT violation exists, if any, gravitational waves with different circular polarizations could gain a slight difference in propagating speeds. Hence…

## 4 Citations

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