Hybrid inflation and waterfall field in string theory from D7-branes

被引：0
作者：
Ignatios Antoniadis
Osmin Lacombe
George K. Leontaris
机构：
[1] Laboratoire de Physique Théorique et Hautes Energies (LPTHE),Physics Department
[2] Sorbonne Université,undefined
[3] CNRS,undefined
[4] University of Ioannina,undefined
来源：
Journal of High Energy Physics | / 2022卷
关键词：
D-branes; Supersymmetric Effective Theories; Superstring Vacua; Supersymmetry Breaking;
D O I：
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学科分类号：
摘要：
We present an explicit string realisation of a cosmological inflationary scenario we proposed recently within the framework of type IIB flux compactifications in the presence of three magnetised D7-brane stacks. Inflation takes place around a metastable de Sitter vacuum. The inflaton is identified with the volume modulus and has a potential with a very shallow minimum near the maximum. Inflation ends due to the presence of “waterfall” fields that drive the evolution of the Universe from a nearby saddle point towards a global minimum with tuneable vacuum energy describing the present state of our Universe.
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