Tachyon constant-roll inflation

TL;DR

This paper investigates tachyon field-driven constant-roll inflation, analyzing perturbations and comparing results with observational data to assess its viability as an inflation model.

Contribution

It introduces a constant-roll inflation model with a tachyon field, considering the second slow-roll parameter as order one, and evaluates its observational consistency.

Findings

Model aligns with observational data

Perturbation parameters are consistent with the approach

Tachyon constant-roll inflation is a viable candidate

Abstract

The constant-roll inflation is studied where the inflaton is taken as a tachyon field. Since in this approach the second slow-roll parameter is assumed to be of order one instead of being small, then the perturbation parameters will be considered again. The results are compared with observational data, and it is confirmed that the model could stand as a proper candidate for inflation.