论文标题
根据最近的二头肌/凯克的结果，规范和非规范通货膨胀
Canonical and Non-canonical Inflation in the light of the recent BICEP/Keck results
论文作者
论文摘要
我们讨论了最新的二头肌/凯克数据发布对通货膨胀模型的含义，并特别强调了标量字段，其类型为$ {\ cal l} = x^α-v（ϕ）$的非经典拉格朗日。 The observational upper bound on the tensor-to-scalar ratio, $r \leq 0.036$, implies that the whole family of monomial power law potentials $V(ϕ) \sim ϕ^p$ are now ruled out in the canonical framework at $95\%$ confidence, which includes the simplest classic inflationary potentials such as $\frac{1}{2}m^2 ϕ^2$ and $ λϕ^4 $。取而代之的是，当前的观察结果强烈渐近地平稳势。但是，在非规范框架中工作，我们证明了单个电位以及具有标准模型自耦合的HIGGS潜力可以通过当前的CMB数据轻松适应。我们发现$ \ lbrace n _ {_ s}，r \ rbrace $在非规范框架中单势的流量线与规范框架中的T-Model $α$ a-attractors。值得注意的是，$ v（ϕ）$可以起源于普朗克尺度初始值$ v（ϕ）\ simeq m_p^4 $在非典型模型中，而在类似于高原的规范通货膨胀率中，电势的初始值被强烈抑制$ v _ {\ rm plp plat}（ϕ）（ϕ）\ leq 10^{f leq 10^{ - 10^{ - 10} m__ $。这与通货膨胀初始条件的问题有关，并允许在非规范模型中的动力学和潜在术语进行平衡。
We discuss implications of the latest BICEP/Keck data release for inflationary models, with particular emphasis on scalar fields with non-canonical Lagrangians of the type ${\cal L} = X^α- V(ϕ)$. The observational upper bound on the tensor-to-scalar ratio, $r \leq 0.036$, implies that the whole family of monomial power law potentials $V(ϕ) \sim ϕ^p$ are now ruled out in the canonical framework at $95\%$ confidence, which includes the simplest classic inflationary potentials such as $\frac{1}{2}m^2 ϕ^2$ and $λϕ^4$. Instead, current observations strongly favour asymptotically flat plateau potentials. However, working in the non-canonical framework, we demonstrate that monomial potentials, as well as the Higgs potential with its Standard Model self-coupling, can easily be accommodated by current CMB data. We find striking similarities between the $\lbrace n_{_S}, r\rbrace$ flow lines of monomial potentials in the non-canonical framework and the T-model $α$-attractors in the canonical framework. Significantly, $V(ϕ)$ can originate from Planck scale initial values $V(ϕ) \simeq m_p^4$ in non-canonical models while in plateau-like canonical inflation the initial value of the potential is strongly suppressed $V_{\rm plat}(ϕ) \leq 10^{-10} m_p^4$. This has bearing on the issue of initial conditions for inflation and allows for the equipartition of the kinetic and potential terms in non-canonical models.
