Eur. Phys. J. C (2018) 78: 55
https://doi.org/10.1140/epjc/s10052-018-5534-5

Regular Article - Theoretical Physics

Anisotropic constant-roll Inflation

Department of Physics, Kobe University, Kobe, 657-8501, Japan

^* e-mail: asuka-ito@stu.kobe-u.ac.jp

Received: 6 November 2017
Accepted: 8 January 2018
Published online: 22 January 2018

Abstract

We study constant-roll inflation in the presence of a gauge field coupled to an inflaton. By imposing the constant anisotropy condition, we find new exact anisotropic constant-roll inflationary solutions which include anisotropic power-law inflation as a special case. We also numerically show that the new anisotropic solutions are attractors in the phase space.