6533b823fe1ef96bd127eba0

RESEARCH PRODUCT

Transplanckian masses in inflation

Gabriela BarenboimOscar Vives

subject

PhysicsMinimal couplingInflation (cosmology)Nuclear and High Energy PhysicsGravity (chemistry)Field (physics)010308 nuclear & particles physicsScalar (mathematics)Planck massInflaton01 natural sciencesGravitationTheoretical physicsGeneral Relativity and Quantum CosmologyClassical mechanics0103 physical sciences010306 general physics

description

AbstractWe explore the possibility that the transplanckian field values needed to accommodate the experimental results in minimally coupled single-field inflation models are only due to our insistence of imposing a minimal coupling of the inflaton field to gravity. A simple conformal transformation can bring the field values below the Planck mass without changing the physics at the expense of having a richer gravitational sector. Transplanckian field values may be the signal that we are (miss)interpreting phenomena due to gravity as being originated exclusively in the scalar sector.

10.1016/j.nuclphysbps.2015.09.065http://dx.doi.org/10.1016/j.nuclphysbps.2015.09.065