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Statefinder diagnostic for exponential harmonic field
International Journal of Modern Physics A ( IF 1.4 ) Pub Date : 2020-09-22 , DOI: 10.1142/s0217751x20501614
A. D. Kanfon 1 , F. Mavoa 2 , G. Koto N’Gobi 3
Affiliation  

The dynamic study of the harmonic exponential field has been made using the statefinder diagnostic. By the use of a specific method, we find out the statefinder parameters [Formula: see text], [Formula: see text] according to the deceleration parameter and the redshift. The numerical analysis of these parameters brings out the transition between the accelerated and decelerated phases of the universe. There is also an attracting effect from the SCDM (Standard Cold Dark Matter) model toward the LCDM model ([Formula: see text]CDM). In view of the results this study allows us to classify the exponential harmonic field among the quintessential models.

中文翻译:

指数谐波场的 Statefinder 诊断

谐波指数场的动态研究已使用状态查找器诊断进行。通过使用特定的方法,我们根据减速参数和红移找出状态查找器参数[公式:见文]、[公式:见文]。这些参数的数值分析显示了宇宙加速阶段和减速阶段之间的过渡。SCDM(标准冷暗物质)模型对 LCDM 模型([公式:见正文]CDM)也有吸引效应。鉴于本研究的结果,我们可以在典型模型中对指数谐波场进行分类。
更新日期:2020-09-22
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