Full bispectra from primordial scalar and tensor perturbations in the most general single-field inflation model
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🌌 astro-ph.CO
gr-qchep-phhep-th
keywords
bispectrafullinflationgeneralmodelperturbationsprimordialscalar
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We compute the full bispectra, namely both auto- and cross- bispectra, of primordial curvature and tensor perturbations in the most general single-field inflation model whose scalar and gravitational equations of motion are of second order. The formulae in the limits of k-inflation and potential-driven inflation are also given. These expressions are useful for estimating the full bispectra of temperature and polarization anisotropies of the cosmic microwave background radiation.
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