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Gravitational radiation in infinite derivative gravity and connections to effective quantum gravity

Research output: Contribution to journalJournal article

Article number044049
<mark>Journal publication date</mark>28/08/2018
<mark>Journal</mark>Physical Review D
Issue number4
Number of pages7
Publication StatusPublished
<mark>Original language</mark>English


The Hulse-Taylor binary provides possibly the best test of GR to date. We find the modified quadrupole formula for infinite derivative gravity (IDG). We investigate the backreaction formula for propagation of gravitational waves, found previously for effective quantum gravity (EQG) for a flat background and extend this calculation to a de Sitter background for both EQG and IDG. We put tighter constraints on EQG using new LIGO data. We also find the power emitted by a binary system within the IDG framework for both circular and elliptical orbits and use the example of the Hulse-Taylor binary to show that IDG is consistent with GR.

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© 2018 American Physical Society