Damping of tensor modes in inflation

Abstract

We discuss the damping of tensor modes due to anisotropic stress in inflation. The effect is negligible in standard inflation and may be significantly large in inflation models that involve drastic production of free-streaming particles.

9 pages, 1 figure, revised version to be published in Physical Review D

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Cited by in corpus (7)

• A numerical study of pseudoscalar inflation with an axion-gauge field coupling
• Primordial backgrounds of relic gravitons
• An analytic description of the damping of gravitational waves by free streaming neutrinos
• Electromagnetic coupling effects in natural inflation
• Flat spectra of cosmic gravitons in the nHz and audio bands
• The spectrum of tensor perturbations in warm inflation
• Relic gravitons at intermediate frequencies and the expansion history of the Universe