Interacting ghost dark energy models with variable G and Λ

Journal Article · Sun Dec 01 00:00:00 EST 2013 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2013/12/031· OSTI ID:22369849

Sadeghi, J.; Farahani, H. ^[1]; Khurshudyan, M. ^[2]

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1. Department of Physics, Mazandaran University, Babolsar, P .O .Box 47416-95447, Babolsar (Iran, Islamic Republic of)
2. CNR NANO Research Center S3, Via Campi 213a, 41125 Modena MO (Italy)

In this paper we consider several phenomenological models of variable Λ. Model of a flat Universe with variable Λ and G is accepted. It is well known, that varying G and Λ gives rise to modified field equations and modified conservation laws, which gives rise to many different manipulations and assumptions in literature. We will consider two component fluid, which parameters will enter to Λ. Interaction between fluids with energy densities ρ{sub 1} and ρ{sub 2} assumed as Q = 3Hb(ρ{sub 1}+ρ{sub 2}). We have numerical analyze of important cosmological parameters like EoS parameter of the composed fluid and deceleration parameter q of the model.

• OSTI ID: 22369849
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 12; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ACCELERATION
CONSERVATION LAWS
ENERGY DENSITY
FIELD EQUATIONS
FLUIDS
INTERACTIONS
NONLUMINOUS MATTER
UNIVERSE