Daniel F. Litim

Matter spectral functions from quantum gravity

We investigate Lorentzian quantum gravity coupled to a template matter sector with gauge fields, scalars and fermions. In the absence of quantised gravity, the matter sector by itself is renormalisable, but UV-incomplete. Provided quantum gravity offers an asymptotically safe UV-...

Dilaton physics from asymptotic freedom

The dilaton is investigated from first principles within an asymptotically free Gross-Neveu-Yukawa theory in three dimensions. In the limit of many fermion flavours, the theory features a finite line of strongly interacting fixed points. At its endpoint, a dilaton arises as the m...