Cosmological Tachyon Condensation

Onderzoeksoutput: Meeting abstract (Book)

Samenvatting

We consider the dynamics of the open string tachyon condensation in a framework of the cubic
fermionic String Field Theory including a non-minimal coupling with closed string massless
modes, the graviton and the dilaton. We show explicitly that the influence of the dilaton on the
tachyon condensation is essential and provides a significant effect: oscillations of the Hubble
parameter and the state parameter become of a cosmological scale. We give an estimation for
the period of these oscillations (0.1 - 1) Gyr and note a good agreement of this period with
the observed oscillations with a period (0.15 - 0.65) Gyr in a distribution of quasar spectra.
Originele taal-2English
TitelProceedings of 43rd Rencontres de Moriond (2008), Cosmology
Aantal pagina's4
StatusPublished - 22 mrt 2008
EvenementUnknown - Stockholm, Sweden
Duur: 21 sep 200925 sep 2009

Conference

ConferenceUnknown
Land/RegioSweden
StadStockholm
Periode21/09/0925/09/09

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