Large-Scale Suppression from Stochastic Inflation - INSPIRE

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Large-Scale Suppression from Stochastic Inflation

Florian Kuhnel
(
- Bielefeld U.
)
,
Dominik J. Schwarz
(
- Bielefeld U.
)

Mar, 2010

4 pages

Published in:

Phys.Rev.Lett. 105 (2010) 211302

e-Print:

1003.3014 [hep-ph]

DOI:

10.1103/PhysRevLett.105.211302

Report number:

BI-TP-2010-08

View in:

ADS Abstract Service

reference search19 citations

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Abstract: (arXiv)

We show non-perturbatively that the power spectrum of a self-interacting scalar field in de Sitter space-time is strongly suppressed on large scales. The cut-off scale depends on the strength of the self-coupling, the number of e-folds of quasi-de Sitter evolution, and its expansion rate. As a consequence, the two-point correlation function of field fluctuations is free from infra-red divergencies.

98.80.Cq
05.10.Gg
04.62.+v
inflation: stochastic
space-time: de Sitter
field theory: scalar
suppression
correlation function
power spectrum
field theory: fluctuation

References(16)

Figures(0)

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