期刊
PHYSICS LETTERS B
卷 717, 期 1-3, 页码 6-9出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2012.09.014
关键词
Inflation; Non-Abelian gauge theory; Axion; Gauge-flation
Gauge-flation, non-Abelian gauge field inflation, which was introduced in Maleknejad and Sheikh-Jabbari (2011) [4] and analyzed more thoroughly in Maleknejad and Sheikh-Jabbari (2011)[5]. is a model of inflation driven by non-Abelian gauge fields minimally coupled to Einstein gravity. In this model a certain rotationally invariant combination of gauge fields plays the role of the inflaton. Recently, the chromo-natural inflation model was proposed (Adshead and Wyman, 2012 [8]) which besides the non-Abelian gauge fields also involves an axion field. In this short Letter we show that the model involving axions, indeed allows for various slow-roll trajectories for different values of its parameters: A specific trajectory discussed in Adshead and Wyman (2012) [8] starts from a small axion region, while the trajectory considered in Maleknejad and Sheikh-Jabbari (2011) [4,5] corresponds to a large axion region. (C) 2012 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据