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arXiv 1201.0589gr-qc
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相互作用多方气体暗能量模型的状态发现诊断和$w-w^{\prime}$分析

Statefinder diagnostic and $w-w^{\prime}$ analysis for interacting polytropic gas dark energy model

M. Malekjani, A. Khodam-Mohammadi

摘要:

利用状态探测诊断工具和$w-w^{\prime}$分析方法研究了相互作用多方气体暗能量模型.计算了模型参数和暗物质与暗能量相互作用参数对状态探测器参数的依赖关系。结果表明,不同的模型参数值和不同的相互作用参数值会导致$s-r$和$w-w^{\prime}$平面上不同的演化轨迹。暗能量的多方气体模型在早期模仿了标准的$Λ$ CDM模型。

英文摘要:

The interacting polytropic gas dark energy model is investigated from the viewpoint of statefinder diagnostic tool and $w-w^{\prime}$ analysis. The dependency of the statefinder parameters on the parameter of the model as well as the interaction parameter between dark matter and dark energy is calculated. We show that different values of the parameters of model and different values of interaction parameter result different evolutionary trajectories in $s-r$ and $w-w^{\prime}$ planes. The polytropic gas model of dark energy mimics the standard $Λ$CDM model at the early time.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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