Interacting ghost dark energy models with variable G and Λ

被引：50

作者：

Sadeghi, J. ^{[1
]}

Khurshudyan, M. ^{[2
,3
,4
]}

Movsisyan, A. ^{[5
]}

Farahani, H. ^{[1
]}

机构：

[1] Mazandaran Univ, Dept Phys, POB 47416-95447, Babolsar, Iran

[2] CNR NANO Res Ctr S3, I-41125 Modena Mo, Italy

[3] Univ Modena & Reggio Emilia, Dipartimento Sci Fis Informat & Matemat, Modena, Italy

[4] Yerevan State Univ, Dept Theoret Phys, Yerevan 0025, Armenia

[5] Yerevan State Univ, R&D Ctr Semicond Devices & Nanotechnol, Yerevan 375049, Armenia

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2013年 / 12期

关键词：

dark energy theory; astrophysical fluid dynamics; GENERALIZED CHAPLYGIN-GAS; COSMOLOGICAL CONSEQUENCES; CARDASSIAN EXPANSION; QUINTOM; UNIVERSE; QUINTESSENCE; EVOLUTION; MATTER; CONSTRAINTS; PARAMETERS;

D O I：

10.1088/1475-7516/2013/12/031

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper we consider several phenomenological models of variable Lambda. Model of a flat Universe with variable Lambda and G is accepted. It is well known, that varying G and Lambda 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 Lambda. Interaction between fluids with energy densities rho(1) and rho(2) assumed as Q = 3Hb (rho(1) + rho(2)). We have numerical analyze of important cosmological parameters like EoS parameter of the composed fluid and deceleration parameter q of the model.

引用

页数：24

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