论文标题

全息暗能量驱动的恒定通胀

Constant-roll inflation driven by holographic dark energy

论文作者

Mohammadi, Abolhassan

论文摘要

假设它是由能量密度$ 3M_P^2 c^2 / l^2 $引起的恒定通胀的情况。作为红外截止的$ c $参数和哈勃半径不同的能量密度为延迟加速扩展提供了适当的描述。这促使我们在恒定通货膨胀的情况下研究相同全息暗能的作用。恒定通货膨胀的主要特征之一是第二个慢速参数是恒定的,不一定很小。此功能带来了参数$ c $的微分方程。在找到参数的分析解决方案后,在通货膨胀时获得可观察的参数,并通过将模型与数据进行比较,确定了模型的常数。估计通货膨胀的能量尺度约为$ 10^{16} \; {\ rm gev} $。最后,考虑了HDE和规范标量场之间的对应关系,并讨论了构造电位的行为及其幅度。

The scenario of constant-roll inflation is investigated assuming that it is caused by holographic dark energy with energy density $3M_p^2 c^2 / L^2$. The energy density with varying $c$ parameter and Hubble radius as infrared cutoff provides a proper description for the late time acceleration expansion. This motivates us to study the role of the same holographic dark energy in the scenario of constant-roll inflation. One of the main features of constant-roll inflation is that the second slow-roll parameter is constant which is not necessarily small. This feature brings a differential equation for the parameter $c$. After finding an analytical solution for the parameter, the observable parameters are obtained at the time of inflation, and by comparing the model with data, the constants of the model are determined. The energy scale of inflation is estimated which is about $10^{16} \; {\rm GeV}$. Finally, a correspondence between the HDE and canonical scalar field is considered and the behavior of the constructed potential and its magnitude is discussed.

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