Study of scalar and tensor power spectra in the generalized Starobinsky inflationary model using semiclassical methods
نویسندگان
چکیده
In this work we solved the equation of scalar and tensor perturbations for generalized Starobinsky inflationary model using improved uniform approximation method phase-integral up to third-order in deviation. We compare our results with numerical integration. have obtained that both semiclassical methods reproduce power spectra PS,T, spectral index nS, tensor-to-scalar ratio r. Also present (nS,r) plane.
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ژورنال
عنوان ژورنال: Astroparticle Physics
سال: 2022
ISSN: ['0927-6505', '1873-2852']
DOI: https://doi.org/10.1016/j.astropartphys.2022.102745