论文标题

从宇宙通货膨胀和物质的创造到暗物质 - 充气之旅?

From Cosmic Inflation and Matter Creation to Dark Matter -- Journey of the Inflaton?

论文作者

Balakrishna, B. S.

论文摘要

提出了从宇宙通货膨胀和物质创造到今天的暗物质/暗能量的流动性演变的场景。首先,引入了充气的通货膨胀阶段的模型。随着物质的存在拖延了物质的创造,充气量下降了山顶潜力。物质的存在提供了一种机制,可以阻止宇宙的加速度,从而阻止宇宙的加速。标准指标的模型预测与当前的CMB限制完全一致。原则上可以扩展潜力,以完成通货膨胀之后的潜在山丘。在其状态参数方程的演变之后,可以定性地推断出,从通货膨胀阶段到辐射/物质主导的时代和当前时间的演变。其动力学的解决方案的存在,跟踪物质随着当前时代的发展,为宇宙学参数的幅度相对顺序(尤其是当今的暗物质的相对丰度)提供了合理的推理。

A scenario of the inflaton evolution from cosmic inflation and matter creation to dark matter/dark energy today is presented. To start with, a model of the inflationary phase of the inflaton is introduced. The inflaton rolls down a hilltop potential along with matter creation being dragged down by the presence of matter. Presence of matter provides a mechanism to stop universe's acceleration and hence the inflationary phase. The model predictions for the standard metrics are fully consistent with the current CMB limits. The potential could in principle be extended to complete a potential hill subsequent to inflation. The evolution of the inflaton from the inflationary phase to radiation/matter dominated eras and to current times can be inferred qualitatively following the evolution of its equation of state parameter. Existence of solutions to its dynamics, tracking matter as it evolves to current times, provides a plausible reasoning for the relative order of magnitudes of the cosmological parameters, in particular to the relative abundance of dark matter today.

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