Quintessence Axion Revisited in Light of Swampland Conjectures

Abstract

We point out that the swampland conjectures, forbidding the presence of global symmetries and (meta-)stable de Sitter vacua within quantum gravity, pick up a dynamical axion for the electroweak SU(2) gauge theory as a natural candidate for the quintessence field. The potential energy of the electroweak axion provides an attractive candidate for the dark energy. We discuss constraints from the weak gravity conjecture, from the conjecture of no global symmetry, and from observations, which can be satisfied elegantly in a supersymmetric extension of the standard model.

arXiv comment6 pages, 1 figure; v3: published version

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• Quintessence and the Swampland: The numerically controlled regime of moduli space
• Cosmic Birefringence from Monodromic Axion Dark Energy
• Novel constraints on fifth forces and ultralight dark sector with asteroidal data
• Trans-Planckian Censorship and Inflation in Grand Unified Theories
• Further refining Swampland Conjecture on inflation in general scalar-tensor theories of gravity
• Consistency of the string inspired electroweak axion with cosmic birefringence
• Testing Quintessence Axion Dark Energy with Recent Cosmological Results
• Is $N=2$ Large?
• Composite Inflation and further refining dS swampland conjecture
• Reheating After Swampland Conjecture
• High-quality axions in a class of chiral $U(1)$ gauge theories
• High Quality Axion in Supersymmetric Models
• Hidden Sectors in String Theory: Kinetic Mixings, Fifth Forces and Quintessence
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• The anomalous shift of the weak boson mass and the quintessence electroweak axion
• Implications of single field inflation in general cosmological scenarios on the nature of dark energy given the swampland conjectures
• Induced cosmological anisotropy by a gauge-gravity interaction