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arXiv 2209.06153astro-ph.CO
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暖$β$ -指数暴胀与沼泽地猜想

Warm $β$-exponential inflation and the Swampland Conjectures

F. B. M. dos Santos, R. Silva, S. Santos da Costa, M. Benetti, J. S. Alcaniz

摘要:

我们研究了由$β$ -指数势驱动的暖膨胀情景的理论和观测方面,该势概括了著名的幂律膨胀。在这种情况下,暴胀子场衰变为辐射发生在暴胀阶段。在我们的研究中,我们考虑了耗散系数($Γ$)与温度($T$)的立方依赖性,并调查在暴胀动力学的后果,侧重于对光谱指数$n_s$,其运行$n_{run}$和张量标量比$r$的影响。我们发现,在弱耗散和强耗散区域,实现与当前宇宙微波背景数据一致的暴胀是可能的。我们还调查了理论方面的模型,在光的沼泽地aesturtures,作为温暖的通货膨胀在强耗散制度已被称为一种方式,以满足目前在文献中讨论的三个条件。我们发现,当采用$Γ\propto T^3$时,$β$ -指数模型能被适应到结构中.

英文摘要:

We investigate theoretical and observational aspects of a warm inflation scenario driven by the $β$-exponential potential, which generalizes the well-known power law inflation. In such a scenario, the decay of the inflaton field into radiation happens during the inflationary phase. In our study, we consider a dissipation coefficient ($Γ$) with cubic dependence on the temperature ($T$) and investigate the consequences in the inflationary dynamics, focusing on the impact on the spectral index $n_s$, its running $n_{run}$ and tensor-to-scalar ratio $r$. We find it possible to realize inflation in agreement with current cosmic microwave background data in weak and strong dissipation regimes. We also investigate theoretical aspects of the model in light of the swampland conjectures, as warm inflation in the strong dissipation regime has been known as a way to satisfy the three conditions currently discussed in the literature. We find that when $Γ\propto T^3$, the $β$-exponential model can be accommodated into the conjectures.

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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