Phantom scalar-tensor models and cosmological tensions
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2023/04/029
Abstract: We study three different extended scalar-tensor theories of gravity by also allowing a negative sign for the kinetic term for the scalar field in the Jordan frame. Our scope is to understand how the observational… read more here.
Keywords: scalar tensor; term; sign kinetic; kinetic term ... See more keywords
Reheating constraints on k -inflation
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.104.083526
Abstract: Abstract In this work we revisit constraints on K-inflation with DBI kinetic term and power-law kinetic term from reheating. For DBI kinetic term we choose monomial potentials, V ∝ φn with n = 2/3 ,… read more here.
Keywords: planck 2018; term; kinetic term; dbi kinetic ... See more keywords