Non-minimal curvature-matter couplings in modified gravity

Details Non-minimal curvature-matter couplings in modified gravity Non-minimal curvature-matter couplings in modified gravity

2008-11-18

arxiv.org/abs/0811.2876v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, 2 figures, contribution to the anniversary volume "The Problems of Modern Cosmology", on the occasion of the 50th bi

Scientific paper

Recently, in the context of f(R) modified theories of gravity, it was shown
that a curvature-matter coupling induces a non-vanishing covariant derivative
of the energy-momentum, implying non-geodesic motion and, under appropriate
conditions, leading to the appearance of an extra force. We study the
implications of this proposal and discuss some directions for future research.

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