Illusions of general relativity in BransDicke gravity
Abstract
Contrary to common belief, the standard tenet of BransDicke theory reducing to general relativity in the ω>∞ limit is false when the trace of the matter energymomentum tensor vanishes. The issue is clarified in a new approach using conformal transformations. The otherwise unaccountable limiting behavior of BransDicke gravity is easily understood in terms of the conformal invariance of the theory when the sources of gravity have radiationlike properties. The rigorous computation of the asymptotic behavior of the BransDicke scalar field is straightforward in this new approach.
 Publication:

Physical Review D
 Pub Date:
 April 1999
 DOI:
 10.1103/PhysRevD.59.084021
 arXiv:
 arXiv:grqc/9902083
 Bibcode:
 1999PhRvD..59h4021F
 Keywords:

 04.50.+h;
 04.20.Jb;
 Gravity in more than four dimensions KaluzaKlein theory unified field theories;
 alternative theories of gravity;
 Exact solutions;
 General Relativity and Quantum Cosmology;
 Astrophysics
 EPrint:
 16 pages, LaTeX, to appear in Physical Review D