# How inflationary gravitons affect gravitational radiation

@article{Tan2021HowIG, title={How inflationary gravitons affect gravitational radiation}, author={Liang Tan and N. C. Tsamis and Richard Woodard}, journal={Philosophical Transactions of the Royal Society A}, year={2021}, volume={380} }

We include the single graviton loop contribution to the linearized Einstein equation. Explicit results are obtained for one loop corrections to the propagation of gravitational radiation. Although suppressed by a minuscule loop-counting parameter, these corrections are enhanced by the square of the number of inflationary e-foldings. One consequence is that perturbation theory breaks down for a very long epoch of primordial inflation. Another consequence is that the one loop correction to the…

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We continue our overview of mathematical cosmology with a survey of the third and fourth periods of the development of the subject. The first Part includes the first two periods and is published…

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