Accelerated expansion from a non-minimal gravitational coupling to matter

Abstract

It is shown that a non-minimal coupling between the scalar curvature and the matter Lagrangian density may account for the accelerated expansion of the Universe and provide, through mimicking, for a viable unification of dark energy and dark matter. An analytical exploration is first performed, and a numerical study is then used to validate the obtained results. The encountered scenario allows for a better grasp of the proposed mechanism, and sets up the discussion for improvements that can lead to a complete agreement with the observational data.

Latex file, 10 pages, 6 figures

References in corpus (8)

• Dynamics of dark energy
• Extra force in $f(R)$ modified theories of gravity
• Nonminimal coupling of perfect fluids to curvature
• Reconstruction of the deceleration parameter and the equation of state of dark energy
• Do f(R) theories matter?
• On the non-minimal gravitational coupling to matter
• Mimicking dark matter through a non-minimal gravitational coupling with matter
• WMAP5 constraints on the unified model of dark energy and dark matter

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