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Constraints on Dissipative Non-Equilibrium Dark Energy Models from Recent Supernova Data | | Vasiliki A. Mitsou
; | | Date: |
1 Aug 2007 | | Abstract: | Non-critical string cosmologies may be viewed as the analogue of
off-equilibrium models arising within string theory as a result of a cosmically
catastrophic event in the early Universe. Such models entail relaxing-to-zero
dark energies provided by a rolling dilaton field at late times. We discuss
fits of such non-critical models to high-redshift supernovae data, including
the recent ones by HST and ESSENCE and compare the results with those of a
conventional model with Cold Dark Matter and a cosmological constant and a
model invoking super-horizon perturbations. | | Source: | arXiv, 0708.0113 | | Services: | Forum | Review | PDF | Favorites | |
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