FRW Cosmology with the Extended Chaplygin Gas

B. Pourhassan; E. O. Kahya

doi:10.1155/2014/231452

FRW Cosmology with the Extended Chaplygin Gas

B. Pourhassan^*
, E. O. Kahya

^*Corresponding author for this work

Department of Physics Engineering

Istanbul Technical University

Research output: Contribution to journal › Article › peer-review

59 Citations (Scopus)

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	https://doi.org/10.1155/2014/231452
Publication status	Published - 2014

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Publisher Copyright:
© 2014 B. Pourhassan and E. O. Kahya.

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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.",

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AB - 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.

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DO - 10.1155/2014/231452

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VL - 2014

JO - Advances in High Energy Physics

JF - Advances in High Energy Physics

M1 - 231452

ER -

FRW Cosmology with the Extended Chaplygin Gas

Abstract

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