Coupled dark energy: a dynamical analysis with complex scalar field

The European Physical Journal C

Ricardo C. G. Landim¹ 

[1] Instituto de Física, Universidade de São Paulo, Caixa Postal 66318, 05314-970, São Paulo, SP, Brazil;

关键词: Dark Matter;    Dark Energy;    Scalar Field;    Accelerate Expansion;    Dynamical System Theory;   

DOI  :  10.1140/epjc/s10052-016-3894-2

来源: Springer

【 摘 要 】

The dynamical analysis for coupled dark energy with dark matter is presented, where a complex scalar field is taken into account and it is considered in the presence of a barothropic fluid. We consider three dark-energy candidates: quintessence, phantom, and tachyon. The critical points are found and their stabilities analyzed, leading to the three cosmological eras (radiation, matter, and dark energy), for a generic potential. The results presented here extend the previous analyses found in the literature.

【 授权许可】

CC BY