ar X iv : h ep - p h / 06 01 17 8 v 1 2 0 Ja n 20 06 Locked Quintessence and Cold Dark Matter

ar X iv : h ep - t h / 06 10 01 8 v 2 1 0 N ov 2 00 6 Dilaton Coupled Quintessence Model in the ω − ω ′ Plane

In this paper, we regard dilaton in Weyl-scaled induced gravitational theory as a coupled quintessence. Based on this consideration, we investigate the dilaton coupled quintessence(DCQ) model in ω− ω plane, which is defined by the equation of state parameter for the dark energy and its derivative with respect to N(the logarithm of the scale factor a). We find the scalar field equation of motion...

ar X iv : h ep - p h / 04 01 23 8 v 3 2 9 Ju l 2 00 4 Hybrid Dark Sector : Locked Quintessence and Dark Matter

We present a unified model of dark matter and dark energy. The dark matter field is a modulus corresponding to a flat direction of supersymmetry, which couples, in a hybrid type potential, with the dark energy field. The latter is a light scalar, whose direction is stabilized by non-renormalizable terms. This quintessence field is kept ‘locked’ on top of a false vacuum due to the coupling with ...

ar X iv : h ep - p h / 02 06 17 1 v 2 2 4 Ju n 20 02 IPHE 2002 - 009 June 24 , 2002 B 0 – B 0 MIXING

ar X iv : m at h / 06 01 74 3 v 1 [ m at h . SP ] 3 0 Ja n 20 06 DETERMINANTS OF ZEROTH ORDER OPERATORS

ar X iv : a st ro - p h / 01 06 06 8 v 2 5 S ep 2 00 1 Analysis of two quintessence models with SN Ia data

The supernovae Ia data are used to analyze two general exact solutions for quintessence models. The best fit values for Ω m0 are smaller than in the Λ-term model, but still acceptable. With present-day data, it is not possible to discriminate among the various situations.