Exponential Potentials and Attractor Solution of Dilatonic Cosmology

  title={Exponential Potentials and Attractor Solution of Dilatonic Cosmology},
  author={Wei Fang and H. Q. Lu and Z. G. Huang},
  journal={International Journal of Theoretical Physics},
Abstract We present the scalar-tensor gravitational theory with an exponential potential in which Pauli metric is regarded as the physical space-time metric. We show that it is essentially equivalent to coupled quintessence (CQ) model. However for baryotropic fluid being radiation there are in fact no coupling between dilatonic scalar field and radiation. We present the critical points for baryotropic fluid and investigate the properties of critical points when the baryotropic matter is… 
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  • RatraPeebles
  • Physics
    Physical review. D, Particles and fields
  • 1988
It is argued that a number of models in which the energy density of the scalar field red-shifts in a specific manner are studied could reconcile the low dynamical estimates of the mean mass density with the negligibly small spatial curvature preferred by inflation.