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29 March 2024
 
  » arxiv » gr-qc/0407089

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Brany Liouville Inflation
John Ellis ; N.E. Mavromatos ; D.V. Nanopoulos ; A. Sakharov ;
Date 23 Jul 2004
Journal New J.Phys. 6 (2004) 171
Subject gr-qc astro-ph hep-ph hep-th
AffiliationCERN), N.E. Mavromatos (King’s Coll. Lon.), D.V. Nanopoulos (TAMU) and A. Sakharov (CERN and ETH
AbstractWe present a specific model for cosmological inflation driven by the Liouville field in a non-critical supersymmetric string framework, in which the departure from criticality is due to open strings stretched between the two moving Type-II 5-branes. We use WMAP and other data on fluctuations in the cosmic microwave background to fix parameters of the model, such as the relative separation and velocity of the 5-branes, respecting also the constraints imposed by data on light propagation from distant gamma-ray bursters. The model also suggests a small, relaxing component in the present vacuum energy that may accommodate the breaking of supersymmetry.
Source arXiv, gr-qc/0407089
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