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Article
The field-space metric in spiral inflation and related models
Journal of Cosmology and Astroparticle Physics
Document Type
Article
Department/Program
Physics
Pub Date
1-1-2016
Abstract
Multi-field inflation models include a variety of scenarios for how inflation proceeds and ends. Models with the same potential but different kinetic terms are common in the literature. We compare spiral inflation and Dante's inferno-type models, which differ only in their field-space metric. We justify a single-field effective description in these models and relate the single-field description to a mass-matrix formalism. We note the effects of the nontrivial field-space metric on inflationary observables, and consequently on the viability of these models. We also note a duality between spiral inflation and Dante's inferno models with different potentials.
DOI
https://doi.org/10.1088/1475-7516/2016/09/039
Citation Information
Joshua Erlich, Zhen Wang and Jackson Olsen. "The field-space metric in spiral inflation and related models" Journal of Cosmology and Astroparticle Physics Vol. 9 (2016) Available at: http://works.bepress.com/joshua-erlich/3/