Towards axionic Starobinsky-like inflation in string theory

被引：37

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

页码：217 / 222

页数：6

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