Abstract
In this paper, we have considered varying modified Chaplygin gas in case of variable G and Λ. Since varying G and Λ give rises to modified form of field equations and conservation law, we have considered two different toy models. In the first model, the Universe is filled with a phenomenological gas while in the second one, there is the existence of gas and a matter with P = ω(t)ρ m . By considering sign changeable interaction between fluids we have analyzed important cosmological parameters such as EoS parameter of the fluids and deceleration parameter q of the models.
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Appendices
Appendix: Single Component Fluid Universe
Appendix: Two Components Fluid Universe
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Sadeghi, J., Khurshudyan, M. & Farahani, H. Phenomenological Varying Modified Chaplygin Gas with Variable G and Λ: Toy Models for Our Universe. Int J Theor Phys 55, 81–97 (2016). https://doi.org/10.1007/s10773-015-2635-x
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DOI: https://doi.org/10.1007/s10773-015-2635-x