Large gravitational waves and the Lyth bound in multibrane inflation
Abstract
It is shown that multiM5brane inflation in heterotic Mtheory gives rise to a detectable gravitational wave power spectrum with tensor fraction r typically larger than the projected experimental sensitivity, r{sub exp} = 0.01. A measurable gravitational wave power spectrum entails a large inflationary energy scale and a superPlanckian inflaton variation. They present serious problems for particle theory model building as regards a reliable effective field theory description. These problems are eased or even absent in multibrane inflation models and multiM5brane inflation, in particular.
 Authors:

 Arnold Sommerfeld Center for Theoretical Physics, Department fuer Physik, LudwigMaximiliansUniversitaet Muenchen, Theresienstrasse 37, 80333 Muenchen (Germany)
 Publication Date:
 OSTI Identifier:
 22156671
 Resource Type:
 Journal Article
 Journal Name:
 Journal of Cosmology and Astroparticle Physics
 Additional Journal Information:
 Journal Volume: 2008; Journal Issue: 07; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 14757516
 Country of Publication:
 United States
 Language:
 English
 Subject:
 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; BRANES; FIELD THEORIES; GRAVITATIONAL WAVES; INFLATIONARY UNIVERSE; MTHEORY; SENSITIVITY; SPECTRA; TENSORS
Citation Formats
Krause, Axel. Large gravitational waves and the Lyth bound in multibrane inflation. United States: N. p., 2008.
Web. doi:10.1088/14757516/2008/07/001.
Krause, Axel. Large gravitational waves and the Lyth bound in multibrane inflation. United States. doi:10.1088/14757516/2008/07/001.
Krause, Axel. Tue .
"Large gravitational waves and the Lyth bound in multibrane inflation". United States. doi:10.1088/14757516/2008/07/001.
@article{osti_22156671,
title = {Large gravitational waves and the Lyth bound in multibrane inflation},
author = {Krause, Axel},
abstractNote = {It is shown that multiM5brane inflation in heterotic Mtheory gives rise to a detectable gravitational wave power spectrum with tensor fraction r typically larger than the projected experimental sensitivity, r{sub exp} = 0.01. A measurable gravitational wave power spectrum entails a large inflationary energy scale and a superPlanckian inflaton variation. They present serious problems for particle theory model building as regards a reliable effective field theory description. These problems are eased or even absent in multibrane inflation models and multiM5brane inflation, in particular.},
doi = {10.1088/14757516/2008/07/001},
journal = {Journal of Cosmology and Astroparticle Physics},
issn = {14757516},
number = 07,
volume = 2008,
place = {United States},
year = {2008},
month = {7}
}
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