Constant-roll inflation in brane induced gravity cosmology

被引：1
|
作者：
Ravanpak, A. [1 ]
Fadakar, G. F. [1 ]
机构：
[1] Vali E Asr Univ Rafsanjan, Dept Phys, Rafsanjan, Iran
来源：
EUROPEAN PHYSICAL JOURNAL C | 2022年 / 82卷 / 10期
关键词：
HOLOGRAPHIC DARK ENERGY; DGP-BRANE; UNIVERSE; HIERARCHY; FLATNESS; HORIZON;
D O I：
10.1140/epjc/s10052-022-10889-7
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
In this article we study a constant-roll inflationary model in the context of the DGP brane-world cosmology caused by a quintessence scalar field. We determine an analytical solution for the Friedman equation coupled to the equation of motion of the scaler field. The evolution of the primordial scalar and tensor perturbations is also studied. To check the viability of the model we use numerical approaches and plot some figures. Our results for the scalar spectral index and the tensor to scaler ratio show good consistency with observations for given values of model parameters.
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页数：7
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