Brans-Dicke geometry

Punzi, Raffaele; Schuller, Frederic P.; Wohlfarth, Mattias N. R.

doi:10.1016/j.physletb.2008.10.046

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Brans-Dicke geometry

MPS-Authors

Schuller, Frederic P.
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Citation

Punzi, R., Schuller, F. P., & Wohlfarth, M. N. R. (2008). Brans-Dicke geometry. Physics Letters B, 670(2), 161-164. doi:10.1016/j.physletb.2008.10.046.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-146C-9

Abstract

We reveal the non-metric geometry underlying ω→0 Brans–Dicke theory by unifying the metric and scalar field into a single geometric structure. Taking this structure seriously as the geometry to which matter universally couples, we show that the theory is fully consistent with solar system tests. This is in striking contrast with the standard metric coupling, which grossly violates post-Newtonian experimental constraints.