Inflation is the generic feature of phantom field-not the big-rip
Astrophysics
2008-11-26 v1
Abstract
A class of solutions for phantom field corresponding to a generalized k-essence lagrangian has been presented, employing a simple method which provides the scope to explore many such. All the solutions having dynamical state parameter are found to touch the magic line w = -1, asymptotically. The solutions with constant equation of state can represent phantom, quitessence or an ordinary scalar field cosmologies depending on the choice of a couple of parameters of the theory. For w approximately equal to -1, quintessence and phantom models are indistinguishable through the Hubble parameter. Finally, inflation rather than big-rip has been found to be the generic feature of phantom cosmology.
Cite
@article{arxiv.astro-ph/0605388,
title = {Inflation is the generic feature of phantom field-not the big-rip},
author = {Abhik Kumar Sanyal},
journal= {arXiv preprint arXiv:astro-ph/0605388},
year = {2008}
}
Comments
8 pages, 3 figures