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We discuss the impact of adiabatic renormalization on the power spectrum of scalar and tensor perturbations from inflation.
- We show that adiabatic regularization is ambiguous as it leads to very different results, for different adiabatic subtraction schemes, both in the range $v\equiv k/(aH) \gsim 0.1$ and in the infrared regime.
- All these schemes agree in the far ultraviolet, $v\gg 1$.
- Therefore, we argue that in the far infrared regime, $v\ll 1$, the adiabatic expansion is no longer valid, and the unrenormalized spectra are the physical, measurable quantities.
Built on
A. Starobinsky, Pis’ma Zh. Eksp. Teor. Fiz. 30
1979
Earlier work this paper cites.
V. F. Mukhanov, JETP Lett. 41
1988
Earlier work this paper cites.
V. Mukhanov and G. Chibisov, Pis’ma Zh. Eksp. Teor. Fiz. 33
1992
Earlier work this paper cites.
F. Finelli, G. Marozzi, G. P. Vacca, and G. Venturi, Phys. Rev. D 65
2002
Earlier work this paper cites.
F. Finelli, G. Marozzi, G. P. Vacca, and G. Venturi, Phys. Rev. D 69
2004
Earlier work this paper cites.
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2007
Cited alongside, same era.
C. Kiefer, I. Lohmar, D. Polarski, and A. A. Starobinsky, Class. Quant. Grav. 24
2007
Cited alongside, same era.
I. Agulló, J. Navarro-Salas, G. J. Olmo, and L. Parker, Phys. Rev. Lett. 101
2008
Cited alongside, same era.
Parker L., hep-th/0702216
Cited in the paper.
I. Agulló, J. Navarro-Salas, G. J. Olmo, and L. Parker, arXiv:0901.0439v1 [astro-ph]
Cited in the paper.
T. M. Janssen and T. Prokopec, arXiv:0906.0666 [gr-qc]
Cited in the paper.
Then
R. Durrer, The Cosmic Microwave Background
2008
Later among the works it cites.
G. Hinshaw et al., Astrophys. J. Suppl. 180
2009
Closest in time.
E. Komatsu et al., Astrophys. J. Suppl. 180
2009
Closest in time.
F. Finelli, G. Marozzi, A. A. Starobinsky, G. P. Vacca, and G. Venturi, Phys. Rev. D 79
2009
Closest in time.
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