142 research outputs found
Logamediate inflation in DGP cosmology driven by a non-canonical scalar field
The main properties of the logamediate inflation driven by a non-canonical
scalar field in the framework of DGP braneworld gravity are investigated.
Considering high energy conditions we calculate the slow-roll parameters,
analytically. Then, we deal with the perturbation theory and calculate the most
important respective parameters such as the scalar spectral index and the
tensor-to-scalar ratio. We find that the spectrum of scalar fluctuations is
always red-tilted. Also, we understand that the running in the scalar spectral
index is nearly zero. Finally, we compare this inflationary scenario with the
latest observational results from Planck 2018
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