Cosmic Strings in a Braneworld Theory with Metastable Gravitons

Abstract

If the graviton possesses an arbitrarily small (but nonvanishing) mass, perturbation theory implies that cosmic strings have a nonzero Newtonian potential. Nevertheless in Einstein gravity, where the graviton is strictly massless, the Newtonian potential of a cosmic string vanishes. This discrepancy is an example of the van Dam–Veltman–Zakharov (VDVZ… (More)

Topics

2 Figures and Tables

Slides referencing similar topics