Dynamical system analysis of interacting variable modified Chaplygin gas model in FRW universe
نویسندگان
چکیده
منابع مشابه
Interacting Modified Variable Chaplygin Gas in a Non-flat Universe
We have presented a more generalized model of interacting Chaplygin gas. The effective equation of states corresponding to matter and dark energy have been derived in this generalized model. Moreover, the case of phantom energy arises by putting some constraints on the parameters involved.
متن کاملVariable Modified Chaplygin Gas and Accelerating Universe
In this letter, I have proposed a model of variable modified Chaplygin gas and shown its role in accelerating phase of the universe. I have shown that the equation of state of this model is valid from the radiation era to quiessence model. The graphical representations of statefinder parameters characterize different phase of evolution of the universe. All results presented in the letter concer...
متن کاملRole of Modified Chaplygin Gas in Accelerated Universe
Recent observations of the luminosity of type Ia supernovae indicate [1, 2] an accelerated expansion of the universe and lead to the search for a new type of matter which violate the strong energy condition ρ + 3p < 0. The matter consent responsible for such a condition to be satisfied at a certain stage of evolution of the universe is referred to as dark energy. There are different candidates ...
متن کاملSchrödinger-Wheeler-DeWitt equation in chaplygin gas FRW cosmological model
We present a chaplygin gas Friedmann-Robertson-Walker quantum cosmological model. In this work the Schutz’s variational formalism is applied with positive, negative, and zero constant spatial curvature. In this approach the notion of time can be recovered. These give rise to Schrödinger-Wheeler-DeWitt equation for the scale factor. We use the eigenfunctions in order to construct wave packets fo...
متن کاملAccelerated Universe from Modified Chaplygin Gas and Tachyonic Fluid
A cosmological model with an exotic fluid is investigated. We show that the equation of state of this “modified Chaplygin” gas can describe the current accelerated expansion of the universe. We then reexpress it as FRW cosmological model containing a scalar field φ and find its self–interacting potential. Moreover motivated by recent works of Sen [5, 6] and Padmanbhan [13] on tachyon field theo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal Plus
سال: 2012
ISSN: 2190-5444
DOI: 10.1140/epjp/i2012-12030-2