| Name: | Avijit Chowdhury |
| Affiliation: | IIT Bombay |
| Conference ID : | ASI2023_651 |
| Title : | How a non-detectable mode can provide a hint of modified gravity? |
| Authors : | Avijit Chowdhury, Semin Xavier, S. Shankaranarayanan |
| Mode of Presentation: | Oral |
| Abstract Category : | General Relativity and Cosmology |
| Abstract : | General Relativity predicts that the energy carried by gravitational waves is equally distributed between the two orthogonal polarization states.
This is confirmed by various detections by LIGO-VIRGO-KAGRA. While the current detectors have a signal-to-noise ratio of around 5, the third-generation detectors are expected to have a signal-to-noise ratio of more than 50 in the ring-down phase. This will allow us to test General relativity more accurately. We show that, in quadratic gravity, the massive spin-2 mode carries more energy than the spin-0 mode. We demonstrate the implications of our results in two different scenarios — the gravitational wave energy flux measured by the detectors and the backreaction of the emitted gravitational radiation on the spacetime of the emitting black hole— and discuss their importance for future gravitational wave detections.
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