On Inflation and de Sitter in Non-Geometric String Backgrounds

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.

21 pages, 2 figures, references added, typos corrected, note added

References in corpus (5)

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• Gauged supergravities and non-geometric Q/R-fluxes from asymmetric orbifold CFT's
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Cited by in corpus (5)

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• $Spin(7)$ Compactifications and 1/4-BPS Vacua in Heterotic Supergravity