http://arxiv.org/abs/1611.06315
We study the generalized $\alpha$ attractor model in context of late time cosmic acceleration; the model interpolates between freezing and thawing dark energy models. In the slow roll regime, the originally potential is modified whereas the modification ceases in the asymptotic regime and the effective potential behaves as quadratic. In our setting, field rolls slowly around the present epoch and mimics dark matter in future. We put observational constraints on the model parameters for which we use an integrated data base (SN+Hubble+BAO+CMB) for carrying out the data analysis.
M. Shahalam, R. Myrzakulov, S. Myrzakul, et. al.
Tue, 22 Nov 16
34/79
Comments: 10 pages, 3 figures