- #1
shinobi20
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https://arxiv.org/pdf/astro-ph/0006077v2.pdf
page 5. Tensor Perturbations
"Tensor perturbations do not couple strongly to the thermal background and so gravitational waves are only generated by quantum fluctuations, as in standard supercooled inflation".
Why? Tensor perturbations are created by inflation but why don't they couple strongly to the thermal background?
page 5. Tensor Perturbations
"Tensor perturbations do not couple strongly to the thermal background and so gravitational waves are only generated by quantum fluctuations, as in standard supercooled inflation".
Why? Tensor perturbations are created by inflation but why don't they couple strongly to the thermal background?