Inflating with Baryons

TL;DR

This paper proposes a novel field theory approach to solving the eta problem in inflation by using the phase of a baryon in SU(N_c) supersymmetric Yang-Mills theory, avoiding typical operators that disrupt potential flatness.

Contribution

It introduces a new method where the inflaton is the phase of a baryon, ensuring flatness of the potential and extending to non-supersymmetric theories.

Findings

Operators that spoil potential flatness are absent in this setup.

The solution naturally extends beyond supersymmetric theories.

Provides a field theory framework for inflation model building.

Abstract

We present a field theory solution to the eta problem. By making the inflaton field the phase of a baryon of SU(N_c) supersymmetric Yang-Mills theory we show that all operators that usually spoil the flatness of the inflationary potential are absent. Our solution naturally generalizes to non-supersymmetric theories.