Hamilton–Jacobi Formalism for K-Inflation
Physics of the Dark Universe(2024)
摘要
We propose a type of k-inflation under the Hamilton–Jacobi approach. We calculate various observables such as the scalar power spectrum, the tensor-to-scalar ratio, the scalar spectra index for the case where the Hubble parameter is a power-law function of k-field. The model’s parameters are constrained with Planck data and the concrete form of the potential is presented. The results show that the model can be in good agreement with observations.
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关键词
k-inflation,Hamilton–Jacobi approach,Tensor-to-scalar ratio,Scalar spectra index
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