We explore the question why our universe is four dimensional from an asymptotically safe vantage point. We find hints that asymptotically safe quantum fluctuations of gravity can only solve the U(1)Landau-pole problem in the Standard Model in four dimensions. This could single out the observed dimensionality of the universe as the critical dimensionality of asymptotically safe interactions.
|Tidsskrift||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|Status||Udgivet - 10. jun. 2019|