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Charged Vector Inflation

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If you have a question about this talk, please contact Tobias Baldauf.

In this talk we present a model of inflation in which the inflaton field is a complex scalar field charged under a triplet of U(1) gauge fields. We decompose the perturbations into the adiabatic and entropy modes and calculate the curvature perturbation power spectrum and its cross-correlation to entropy modes. In addition to the metric tensor perturbations, there are tensor perturbations associated with the gauge field perturbations which are coupled to metric tensor perturbations. We show that the correction in primordial gravitational tensor power spectrum induced from the matter tensor perturbation is a sensitive function of the gauge coupling.

This talk is part of the Cosmology Lunch series.

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