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Title: Constraining holographic inflation with WMAP

Abstract

In a class of recently proposed models, the early universe is strongly coupled and described holographically by a three-dimensional, weakly coupled, super-renormalizable quantum field theory. This scenario leads to a power spectrum of scalar perturbations that differs from the usual empirical ΛCDM form and the predictions of generic models of single field, slow roll inflation. This spectrum is characterized by two parameters: an amplitude, and a parameter g related to the coupling constant of the dual theory. We estimate these parameters, using WMAP and other astrophysical data. We compute Bayesian evidence for both the holographic model and standard ΛCDM and find that their difference is not significant, although ΛCDM provides a somewhat better fit to the data. However, it appears that Planck will permit a definitive test of this holographic scenario.

Authors:
;  [1];  [2];  [3]
  1. Department of Physics, Yale University, 217 Prospect Street, New Haven, CT 06520 (United States)
  2. Institute for Theoretical Physics, Science Park 904, 1090 GL Amsterdam (Netherlands)
  3. Institute for Theoretical Physics, Gravitation and Astro-Particle Physics Amsterdam, Korteweg-de Vries Institute for Mathematics, Science Park 904, 1090 GL Amsterdam (Netherlands)
Publication Date:
OSTI Identifier:
22277735
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2011; Journal Issue: 09; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; AMPLITUDES; ASTROPHYSICS; COSMOLOGICAL CONSTANT; COSMOLOGY; COUPLING CONSTANTS; DISTURBANCES; NONLUMINOUS MATTER; QUANTUM FIELD THEORY; RENORMALIZATION; SCALARS; THREE-DIMENSIONAL CALCULATIONS; UNIVERSE

Citation Formats

Easther, Richard, Flauger, Raphael, McFadden, Paul, and Skenderis, Kostas. Constraining holographic inflation with WMAP. United States: N. p., 2011. Web. doi:10.1088/1475-7516/2011/09/030.
Easther, Richard, Flauger, Raphael, McFadden, Paul, & Skenderis, Kostas. Constraining holographic inflation with WMAP. United States. https://doi.org/10.1088/1475-7516/2011/09/030
Easther, Richard, Flauger, Raphael, McFadden, Paul, and Skenderis, Kostas. 2011. "Constraining holographic inflation with WMAP". United States. https://doi.org/10.1088/1475-7516/2011/09/030.
@article{osti_22277735,
title = {Constraining holographic inflation with WMAP},
author = {Easther, Richard and Flauger, Raphael and McFadden, Paul and Skenderis, Kostas},
abstractNote = {In a class of recently proposed models, the early universe is strongly coupled and described holographically by a three-dimensional, weakly coupled, super-renormalizable quantum field theory. This scenario leads to a power spectrum of scalar perturbations that differs from the usual empirical ΛCDM form and the predictions of generic models of single field, slow roll inflation. This spectrum is characterized by two parameters: an amplitude, and a parameter g related to the coupling constant of the dual theory. We estimate these parameters, using WMAP and other astrophysical data. We compute Bayesian evidence for both the holographic model and standard ΛCDM and find that their difference is not significant, although ΛCDM provides a somewhat better fit to the data. However, it appears that Planck will permit a definitive test of this holographic scenario.},
doi = {10.1088/1475-7516/2011/09/030},
url = {https://www.osti.gov/biblio/22277735}, journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 09,
volume = 2011,
place = {United States},
year = {Thu Sep 01 00:00:00 EDT 2011},
month = {Thu Sep 01 00:00:00 EDT 2011}
}