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Interacting Modified Cosmic Chaplygin Gas with Variable Cosmological Constant and Viscosity

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Abstract

In this paper we study interaction between modified cosmic Chaplygin gas and pressureless matter in presence of both bulk and shear viscosities as a model of our Universe. Also we consider variable cosmological constant and investigate some cosmological parameters such as sound speed and time-dependent density. We investigate stability of model by using first order linear perturbation.

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Authors and Affiliations

  1. Department of Physics, Shiraz Branch, Islamic Azad University, P. O. Box 71555-477, Shiraz, Iran

    Hassan Saadat

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  1. Hassan Saadat
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Correspondence to Hassan Saadat.

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Saadat, H. Interacting Modified Cosmic Chaplygin Gas with Variable Cosmological Constant and Viscosity. Int J Theor Phys 53, 4160–4169 (2014). https://doi.org/10.1007/s10773-014-2167-9

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  • DOI: https://doi.org/10.1007/s10773-014-2167-9

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