Abstract
We propose extended Chaplygin gas equation of state for which it recovers barotropic fluid with quadratic equation of state. We use numerical method to investigate the behavior of some cosmological parameters such as scale factor, Hubble expansion parameter, energy density, and deceleration parameter. We also discuss the resulting effective equation of state parameter. Using density perturbations we investigate the stability of the theory.
| Original language | English |
|---|---|
| Article number | 231452 |
| Journal | Advances in High Energy Physics |
| Volume | 2014 |
| DOIs | |
| Publication status | Published - 2014 |
Bibliographical note
Publisher Copyright:© 2014 B. Pourhassan and E. O. Kahya.