From dispersion relations to spectral dimension—and back again
From dispersion relations to spectral dimension—and back again
The so-called spectral dimension is a scale-dependent number associated with both geometries and field theories that has recently attracted much attention, driven largely, though not exclusively, by investigations of causal dynamical triangulations and Ho\ifmmode \check{r}\else \v{r}\fi{}ava gravity as possible candidates for quantum gravity. We advocate the use of the spectral …