The curvaton and inhomogeneous reheating scenarios for the generation of the cosmological curvature perturbation on large scales represent an alternative to the standard slow-roll scenario. The basic assumption of these mechanisms is that the initial curvature perturbation due to the inflaton field is negligible. This is usually attained by lowering the energy scale of inflation, thereby concluding that the amount of gravitational waves produced during inflation is highly suppressed. We show that the curvaton and inhomogeneous reheating scenarios are compatible with a level of gravity-wave fluctuations which may well be observed in future satellite experiments.

Pilo, L., Riotto, A., Zaffaroni, A. (2004). Possibility of observable amount of gravitational waves from inflation. PHYSICAL REVIEW LETTERS, 92(20), 1-4 [10.1103/PhysRevLett.92.201303].

Possibility of observable amount of gravitational waves from inflation

Zaffaroni, A
2004

Abstract

The curvaton and inhomogeneous reheating scenarios for the generation of the cosmological curvature perturbation on large scales represent an alternative to the standard slow-roll scenario. The basic assumption of these mechanisms is that the initial curvature perturbation due to the inflaton field is negligible. This is usually attained by lowering the energy scale of inflation, thereby concluding that the amount of gravitational waves produced during inflation is highly suppressed. We show that the curvaton and inhomogeneous reheating scenarios are compatible with a level of gravity-wave fluctuations which may well be observed in future satellite experiments.
Articolo in rivista - Articolo scientifico
inflation; gravitational waves
English
21-mag-2004
92
20
1
4
201303
none
Pilo, L., Riotto, A., Zaffaroni, A. (2004). Possibility of observable amount of gravitational waves from inflation. PHYSICAL REVIEW LETTERS, 92(20), 1-4 [10.1103/PhysRevLett.92.201303].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/1127
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