The Swampland Conjectures: A Bridge from Quantum Gravity to Particle Physics

The swampland is the set of seemingly consistent low-energy effective field theories that cannot be consistently coupled to quantum gravity. In this review we cover some of the conjectural properties that effective theories should possess in order not to fall in the swampland, and we give an overview of their main applications to particle physics. The latter include predictions on neutrino masses, bounds on the cosmological constant, the electroweak and QCD scales, the photon mass, the Higgs potential and some insights about supersymmetry.

Automated summary

The swampland theory consists of low-energy effective field theories that cannot be consistently coupled to quantum gravity. Effective theories should have certain conjectural properties to avoid falling into the swampland. These theories have diverse applications in particle physics, making predictions on neutrino masses, the cosmological constant, electroweak and QCD scales, among others.