6533b857fe1ef96bd12b457b
RESEARCH PRODUCT
Super-Planckian axions from near-conformality
Camila S. MachadoNayara FonsecaBenedict Von HarlingLeonardo De Limasubject
PhysicsInflation (cosmology)Field (physics)010308 nuclear & particles physicsDiagonalConformal mapSpace (mathematics)01 natural sciencesSymmetry (physics)High Energy Physics::TheoryTheoretical physics0103 physical sciencesddc:530Brane010306 general physicsAxiondescription
We present a novel framework for obtaining large hierarchies in axion decay constants as well as trans-Planckian field excursions, with no need for tuning or a large number of fields. We consider a model with two or more conformal field theories with a common cutoff, which are linked by a gauged diagonal symmetry. This construction is dual to the geometry of a warped space with two or more throats glued at a common brane. Besides allowing for calculability, the dual picture makes it possible to interpret the hierarchy of decay constants entirely in terms of the geometry. Our setup can be applied to any framework which requires large field excursions or multiple hierarchies of decay constants, such as natural inflation or ultralight axions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-11-19 | Physical Review D |