If space-time is emergent from a fundamentally nongeometric theory it will generically be left with defects. Such defects need not respect the locality that emerges with the background. Here, we develop a phenomenological model that parametrizes the effects of nonlocal defects on the propagation of particles. In this model, Lorentz invariance is preserved on the average. We derive constraints on the density of defects from various experiments.
Physical Review D
- Pub Date:
- December 2013
- Phenomenology of quantum gravity;
- High Energy Physics - Phenomenology;
- General Relativity and Quantum Cosmology
- 26 pages, 7 figures, replaced to match published version