论文标题
混合希格斯通货膨胀的稳定性
Stability of Hybrid Higgs Inflation
论文作者
论文摘要
Hybrid Higgs通货膨胀模型是所谓的Higgs通货膨胀模型的一种混合类型，该模型具有常规的非最低限度$$耦合到标量曲率$ r $和新的HIGGS通货膨胀模型，并带有衍生物耦合到Einstein Curvature curvature curvature curvature Tensor $ g_ g_ g_ nous。该模型可以解释当前CMB约束允许的张量与尺度比率$ r $的所有可能值，并提供适当的耦合参数。但是，与新的HIGGS通货膨胀模型一样，衍生耦合可能会在通货膨胀后振荡阶段引起梯度不稳定。分析混合HIGGS通货膨胀模型中振荡阶段扰动的行为，我们表明，在新的Higgs通货膨胀模型中发现的不稳定标量模式通过非微小$ξ$耦合在某些范围的耦合参数中稳定。
Hybrid Higgs inflation model is a hybrid type of the so-called Higgs inflation model with the conventional non-minimal $ξ$ coupling to a scalar curvature $R$ and new Higgs inflation model with the derivative coupling to the Einstein curvature tensor $G_{μν}$. This model can explain all possible value of the tensor-to-scalar ratio $r$ allowed by the present CMB constraints with an appropriate choice of coupling parameters. However the derivative coupling may causes a gradient instability during oscillation phase after inflation just as in new Higgs inflation model. Analyzing the behaviours of perturbations during oscillation phase in the hybrid Higgs inflation model, we show that the unstable scalar modes found in new Higgs inflation model are stabilized by the non-minimal $ξ$ coupling for some range of the coupling parameters.
