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A Covariant Version of Verlinde's Emergent Gravity
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A Covariant Version of Verlinde's Emergent Gravity
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A generally covariant version of Erik Verlinde's emergent gravity model is proposed. The Lagrangian constructed here allows an improved interpretation of the underlying mechanism. It suggests that de-Sitter space is filled with a vector-field that couples to baryonic matter and, by dragging on it, creates an effect similar to dark matter. We solve the covariant equation of motion in the background of a Schwarzschild space-time and obtain correction terms to the non-covariant expression. Furthermore, we demonstrate that the vector field can also mimic dark energy.
Forward citations
Cited by 3 Pith papers
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Bridging the gap between dark matter and MOND by a relativistc scalar field approach
A single relativistic scalar field with a Bekenstein-type kinetic term and a mass-generating term reproduces deep-MOND acceleration in the weak-field limit and predicts stronger-than-MOND light bending.
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Vortex-reconnection energy bounds in Bose-Einstein-condensed and superfluid dark matter halos
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