Two views of relative locality Speaker(s): Lee Smolin
Abstract: Relative locality is a quantum gravity phenomenon in which whether an event is local or notand the degree of nonlocalityis dependent on the position and motion of the observer, as well as on the energy of the observerâ€™s probes. It was first discovered and studied, beginning in 2010, in a limit in which h and G both go to zero, with their ratio, which is the Planck energysquared, and c held fixed (arXiv:1101.0931, arXiv:1103.5626).
Relative locality was also found in a different, nonrelativistic limit, involving quantum reference frames, in which c is taken to infinity while h and G are held fixed. I describe some of what we learned in the first studies, in the hope it might be useful to people developing the quantum reference frame approach.
Date: 11/12/2019  11:20 am
Collection: Indefinite Causal Structure
