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Distinguishing between w < -1 dark energy models

Houri Ziaeepour (Mullard Space Science Laboratory, University College London)
03 July 2007, 16:45 - 18:30

Recent data and new data analysis methods show that most probably the parameter w in the equation of state of the dark energy is smaller than -1 at low redshifts. We briefly review the models with such a property and without violating null energy condition. Then we investigate the difference in prediction of these models for cosmological evolution and how this can be explored to single out or constrain the true model and its parameters.
Ziaeepour.pdf [511 KBytes]