Evidence for maximal acceleration and singularity resolution in covariant loop quantum gravity

Phys Rev Lett. 2013 Aug 30;111(9):091303. doi: 10.1103/PhysRevLett.111.091303. Epub 2013 Aug 30.


A simple argument indicates that covariant loop gravity (spin foam theory) predicts a maximal acceleration and hence forbids the development of curvature singularities. This supports the results obtained for cosmology and black holes using canonical methods.