Dark energy and string theory

DOI10.1016/J.PHYSLETB.2019.134950zbMATH Open1434.83143arXiv1905.08269OpenAlexW2945549136MaRDI QIDQ2187210

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Publication date: 2 June 2020

Published in: (Search for Journal in Brave)

Abstract: A radiatively stable de Sitter spacetime is constructed by considering an intrinsically non-commutative and generalized-geometric formulation of string theory, which is related to a family of F-theory models endowed with non-trivial anisotropic axion-dilaton backgrounds. In particular, the curvature of the canonically conjugate dual space provides for a positive cosmological constant to leading order, that satisfies a radiatively stable see-saw-like formula, which in turn induces the dark energy in the observed spacetime. We also comment on the non-commutative phase of the non-perturbative formulations of string theory/quantum gravity implied by this approach.

Full work available at URL: https://arxiv.org/abs/1905.08269

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