论文标题
非最小衍生耦合通货膨胀潜力的重建
The Reconstruction of Non-Minimal Derivative Coupling Inflationary Potentials
论文作者
论文摘要
我们通过非最小导数耦合项得出通货膨胀模型的重建公式。如果从张量与尺度比率重建电势，我们可以在不使用高摩擦极限的情况下获得电势。例如，我们从参数化$ r =8α/（n+β）^γ$中重建电势，这是$α$ aftractor的一般形式。如果我们选择$γ= 2 $和$α\ ll1 $，则重建电势具有与T-和E模型相同的渐近行为。我们还通过假设在加热过程中假设状态方程的参数$ w_ {re} $是一个常数，从而讨论了在辐射统治之前的再加热阶段的约束。如果$ w_ {re} = 2/3 $，大爆炸核合成的比例可能会限制$ n_s $，而如果$ w_ {re} = 1/6 $，则$ n_s $的低限度。
We derive the reconstruction formulae for the inflation model with the non-minimal derivative coupling term. If reconstructing the potential from the tensor-to-scalar ratio, we could obtain the potential without using the high friction limit. As an example, we reconstruct the potential from the parametrization $r=8α/(N+β)^γ$, which is a general form of the $α$-attractor. The reconstructed potential has the same asymptotic behavior as the T- and E-model if we choose $γ=2$ and $α\ll1$. We also discuss the constraints from the reheating phase preceding the radiation domination by assuming the parameter $w_{re}$ of state equation during reheating is a constant. The scale of big-bang nucleosynthesis could put a up limit on $n_s$ if $w_{re}=2/3$ and a low limit on $n_s$ if $w_{re}=1/6$.
