Effects of Multi-Field Phantom Inflation in Big Rip

Abstract

In this paper we study the behavior of the multi-field in phantom inflation, when massive scalar fields work collectively, in which the scale factor is a power law. We evaluate its parameter values by applying certain constraints on our model parameters, and we investigate that before the Big Rip singularity occurs the universe is in phantom inflationary phase. Furthermore, we calculate these values for this period then compare with current observations of CMB, BAO and observational Hubble data. We find that results may be consistent with observations. This implies that in the dark-energy equation of state (EOS) parameter ${\omega }_{DE}$ at the Big Rip remains finite, with the divergence of pressure and dark energy density.

9 pages, 1 figure. arXiv admin note: substantial text overlap with arXiv:1208.0021, and text overlap with arXiv:1203.4901 by other authors

References in corpus (4)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Thermodynamics of a Schwarzschild Black Hole in Phantom Cosmology with Entropy Corrections
• Power law cosmology - a viable alternative
• Reconstruction of the equation of state for the cyclic universes in homogeneous and isotropic cosmology