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首页> 外文期刊>International journal of modern physics, D. Gravitation, astrophysics, cosmology >Connecting inflation with late cosmic acceleration by particle production
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Connecting inflation with late cosmic acceleration by particle production

机译:通过粒子生产将通货膨胀与后期宇宙加速联系起来

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摘要

A continuous process of creation of particles is investigated as a possible connection between the inflationary stage with late cosmic acceleration. In this model, the inflationary era occurs due to a continuous and fast process of creation of relativistic particles, and the recent accelerating phase is driven by the nonrelativistic matter creation from the gravitational field acting on the quantum vacuum, which finally results in an effective equation of state (EoS) less than -1. Thus, explaining recent results in favor of a phantom dynamics without the need of any modifications in the gravity theory has been proposed. Finally, we confront the model with recent observational data of type Ia Supernova, history of the Hubble parameter, baryon acoustic oscillations (BAOs) and the cosmic microwave background (CMB).
机译:研究了一个连续的粒子产生过程,作为膨胀阶段与宇宙加速后期之间的可能联系。在该模型中,通货膨胀时代的出现是由于相对论粒子产生的连续和快速过程,而最近的加速阶段是由作用在量子真空上的引力场产生的非相对论物质驱动的,最终产生了一个有效方程状态(EoS)小于-1。因此,已经提出了在不需要重力理论的任何修改的情况下解释有利于幻影动力学的最新结果的建议。最后,我们用Ia型超新星的最新观测数据,哈勃参数的历史,重子声波振荡(BAOs)和宇宙微波背景(CMB)来面对该模型。

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