Volume 106, Number 6, June 2014
|Number of page(s)||6|
|Section||Geophysics, Astronomy and Astrophysics|
|Published online||24 June 2014|
Non-perturbative effects of primordial curvature perturbations on the apparent value of a cosmological constant
1 Yukawa Institute for Theoretical Physics, Kyoto University - Kyoto 606-8502, Japan
2 Department of Physics, McGill University - Montréal, QC H3A 2T8, Canada
3 Instituto de Fisica, Universidad de Antioquia - A.A. 1226, Medellin, Colombia
4 Department of Physics and CCTP, University of Crete - Heraklion 711 10, Greece
5 Landau Institute for Theoretical Physics, RAS - Moscow 119334, Russia
6 Research Center for the Early Universe, Graduate School of Science, The University of Tokyo - Tokyo 113-0033, Japan
Received: 19 March 2014
Accepted: 10 June 2014
We study effects on the luminosity distance of a local inhomogeneity seeded by primordial curvature perturbations of the type predicted by the inflationary scenario and constrained by the cosmic microwave background radiation. We find that a local underdensity originated from a one, two or three standard deviations peaks of the primordial curvature perturbations field can induce corrections to the value of a cosmological constant of the order of , respectively. These effects cannot be neglected in the precision cosmology era in which we are entering. Our results can be considered an upper bound for the effect of the monopole component of the local non-linear structure which can arise from primordial curvature perturbations and requires a fully non-perturbative relativistic treatment.
PACS: 98.80.Es – Observational cosmology (including Hubble constant, distance scale, cosmological constant, early Universe, etc) / 98.80.-k – Cosmology
© EPLA, 2014
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