Brans-Dicke theory: Jordan vs Einstein Frame

Details Brans-Dicke theory: Jordan vs Einstein Frame Brans-Dicke theory: Jordan vs Einstein Frame

2006-05-19

arxiv.org/abs/gr-qc/0605109v1

Mod.Phys.Lett. A22 (2007) 367-376

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, Accepted by Mod. Phys. Letts. A

Scientific paper

It is well known that, in contrast to general relativity, there are two conformally related frames, the Jordan frame and the Einstein frame, in which the Brans-Dicke theory, a prototype of generic scalar-tensor theory, can be formulated. There is a long standing debate on the physical equivalence of the formulations in these two different frames. It is shown here that gravitational deflection of light to second order accuracy may observationally distinguish the two versions of the Brans-Dicke theory.

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