Measuring the Modified Gravitational Wave Propagation beyond General Relativity from CMB Observations
In modified gravity theories, gravitational wave propagations are presented in nonstandard ways. We consider a friction term different from GR and constrain the modified gravitational waves propagation from observations. The modified gravitational waves produce anisotropies and polarization, which g...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Universe |
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| Online Access: | https://www.mdpi.com/2218-1997/8/7/367 |