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.
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-2 | English |
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Titel | Proceedings of 43rd Rencontres de Moriond (2008), Cosmology |
Aantal pagina's | 4 |
Status | Published - 22 mrt 2008 |
Evenement | Unknown - Stockholm, Sweden Duur: 21 sep 2009 → 25 sep 2009 |
Conference
Conference | Unknown |
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Land/Regio | Sweden |
Stad | Stockholm |
Periode | 21/09/09 → 25/09/09 |