Tsallis agegraphic dark energy model with the sign-changeable interaction

被引:15
|
作者
Xu, Y. D. [1 ]
机构
[1] Jiangsu Ocean Univ, Sch Sci, Lianyungang 222005, Peoples R China
关键词
Tsallis agegraphic dark energy; cosmological evolution; statefinder; COSMOLOGICAL CONSTRAINTS; STATEFINDER DIAGNOSIS; OMEGA;
D O I
10.1088/1572-9494/ab544e
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In this paper, we study the evolution of a spatially flat universe composed of Tsallis agegraphic dark energy (TADE) and a pressureless dark matter (DM), by assuming that there is a sign-changeable interaction between TADE and DM. The density, deceleration parameter and the equation of state parameters (EoS) show satisfactory behaviors in the model. By analysis we find that the accelerated expansion of the universe can be achieved at the late time if model parameters delta > 2 and -2/3 < beta < 0. Also, we investigate the interacting TADE model by means of statefinder diagnostic and w-w ' analysis.
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页数:6
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