3 years ago

Quintessence Axion from Swampland Conjectures.

Masahito Ibe, Masahito Yamazaki, Tsutomu T. Yanagida

We point out that the swampland conjectures forbidding the presence of stable de Sitter and non-supersymmetric anti-de Sitter vacua require the presence of a dynamical axion for the electroweak SU(2) gauge theory. The potential energy of the electroweak axion provides an attractive candidate for the dark energy. We discuss constraints both from the weak gravity conjecture and from observations, which can be satisfied elegantly in a supersymmetric extension of the standard model.

Publisher URL: http://arxiv.org/abs/1811.04664

DOI: arXiv:1811.04664v1

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