arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1502.01371hep-thgr-qc
收藏

高阶修正下Starobinsky模型中的通货膨胀情景

Inflationary scenarios in Starobinsky model with higher order corrections

Michal Artymowski, Zygmunt Lalak, Marek Lewicki

摘要:

我们考虑了Starobinsky暴胀与一组高阶修正参数由两个实系数$λ_1, λ_2$。在爱因斯坦框架中,我们发现了一个潜在的Starobinsky高原,陡峭的斜坡,并可能有一个额外的最小值,局部最大值或鞍点。我们已经确定了在这个模型中可能产生的三种类型的暴胀行为:i)平台上的暴胀,ii)局部最大值(拓扑暴胀),iii)鞍点。我们已经发现了普朗克尺度下参数$λ_i$和初始条件的极限,这些极限使成功的暴胀成为可能,并在平台上使永恒的暴胀失效。我们已经检查了远离GR真空的局部极小值是稳定的,并且场不能通过量子隧穿或通过热校正离开它。

英文摘要:

We consider the Starobinsky inflation with a set of higher order corrections parametrised by two real coefficients $λ_1, λ_2$. In the Einstein frame we have found a potential with the Starobinsky plateau, steep slope and possibly with an additional minimum, local maximum or a saddle point. We have identified three types of inflationary behaviour that may be generated in this model: i) inflation on the plateau, ii) at the local maximum (topological inflation), iii) at the saddle point. We have found limits on parameters $λ_i$ and initial conditions at the Planck scale which enable successful inflation and disable eternal inflation at the plateau. We have checked that the local minimum away from the GR vacuum is stable and that the field cannot leave it neither via quantum tunnelling nor via thermal corrections.

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。

↑