Towards axionic Starobinsky-like inflation in string theory

被引：42
|
作者：
Blumenhagen, Ralph [1 ]
Font, Anamaria [1 ,2 ]
Fuchs, Michael [1 ]
Herschmann, Daniela [1 ]
Plauschinn, Erik [3 ,4 ]
机构：
[1] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
[2] LMU, Arnold Sommerfeld Ctr Theoret Phys, D-80333 Munich, Germany
[3] Univ Padua, Dipartimento Fis & Astron Galileo Galilei, I-35131 Padua, Italy
[4] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy
来源：
PHYSICS LETTERS B | 2015年 / 746卷
关键词：
Inflation; String theory; Axion monodromy; Non-geometric fluxes;
D O I：
10.1016/j.physletb.2015.05.001
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
It is shown that Starobinsky-like potentials can be realized in non-geometric flux compactifications of string theory, where the inflaton involves an axion whose shift symmetry can protect UV-corrections to the scalar potential. For that purpose we evaluate the backreacted, uplifted F-term axion-monodromy potential, which interpolates between a quadratic and a Starobinsky-like form. Limitations due to the requirements of having a controlled approximation of the UV theory and of realizing single-field inflation are discussed. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.
引用
收藏
页码：217 / 222
页数：6
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