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arXiv 2007.07109gr-qc
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双标量场宇宙学中暴胀、暗能量和暗物质的三重统一

Triple unification of inflation, dark energy, and dark matter in two-scalar-field cosmology

Paulo M. Sá

摘要:

在双标量场宇宙学模型中给出了暴胀、暗能量和暗物质的统一描述。暴胀被认为是暖型的,它是由一个标量场驱动的,在暴胀期结束后不久,它从辐射中分离出来,并开始围绕其势能的最小值快速振荡,因此表现得像冷的暗物质;第二个标量场在近代出现,成为宇宙的主要成分,引起了第二个加速膨胀时代。对于模型参数的某些值,在暴胀、暗能量和暗物质的三重统一中产生的宇宙学解是可行的,再现了宇宙演化的主要特征。

英文摘要:

A unified description of inflation, dark energy, and dark matter is presented within a two-scalar-field cosmological model. Inflation, assumed to be of the warm type, is driven by one of the scalar fields, which, shortly after the end of the inflationary period, decouples from radiation and begins to oscillate rapidly around the minimum of its potential, thus behaving like cold dark matter; the second scalar field emerges, at recent times, as the dominant component of the universe, giving rise to a second era of accelerated expansion. For certain values of the parameters of the model, the cosmological solutions arising in this triple unification of inflation, dark energy, and dark matter are viable, reproducing the main features of the evolution of the universe.

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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