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On Inflation and de Sitter in Non‐Geometric String Backgrounds
Author(s) -
Hassler Falk,
Lüst Dieter,
Massai Stefano
Publication year - 2017
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.201700062
Subject(s) - de sitter universe , minkowski space , physics , inflation (cosmology) , theoretical physics , string (physics) , string theory , eternal inflation , context (archaeology) , de sitter space , simple (philosophy) , classical mechanics , mathematical physics , field (mathematics) , universe , mathematics , quantum mechanics , pure mathematics , philosophy , paleontology , inflaton , epistemology , biology
Abstract We study the problem of obtaining de Sitter and inflationary vacua from dimensional reduction of double field theory (DFT) on nongeometric string backgrounds. In this context, we consider a new class of effective potentials that admit Minkowski and de Sitter minima. We then construct a simple model of chaotic inflation arising from T‐fold backgrounds and we discuss the possibility of trans‐Planckian field range from nongeometric monodromies as well as the conditions required to get slow roll.