Authors: Nathalie Deruelle
Date: 24 Apr 2011
Abstract: Nordstrom's theory of gravity, which describes gravity by a scalar field in flat spacetime, is observationally ruled out. It is however the only theory of gravity with General Relativity to obey the strong equivalence principle. I show in this paper that this remarkable property is true beyond post-newtonian level and can be related to the existence of a 'Nordstrom-Katz' superpotential.
© M. Vallisneri 2012 — last modified on 2010/01/29
Tantum in modicis, quantum in maximis