사용자:Skylee1024/연습장

SKKU High Energy Group Wiki

arXiv:1609.01126 (cross-list from gr-qc) [pdf, ps, other]

Observational Constraints on New Exact Inflationary Scalar-field Solutions

John D. Barrow, Andronikos Paliathanasis

Abstract : An algorithm is used to generate new solutions of the scalar field equations in homogeneous and

isotropic universes. Solutions can be found for pure scalar fields with various potentials in the

absence and presence of spatial curvature and other perfect fluids. A series of generalisations of

the Chaplygin gas and bulk viscous cosmological solutions for inflationary universes are found. We

also show how the Hubble slow-roll parameters can be calculated using the solution algorithm and

we compare these inflationary solutions with the observational data provided by the Planck 2015

collaboration in order to constraint and rule out some of these models.