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Cosmological acceleration in delta-gravity

We review a model of the gravitational field described by two symmetric tensors. Gravity is affected by the new field, but outside matter, when Tμν = 0, the predictions of the model coincide exactly with general relativity(GR), so all classical tests are satisfied. We find that massive particles do...

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Bibliographic Details
Main Authors: Alfaro, Jorge, González, Pablo
Format: Conference Proceeding
Language:English
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Summary:We review a model of the gravitational field described by two symmetric tensors. Gravity is affected by the new field, but outside matter, when Tμν = 0, the predictions of the model coincide exactly with general relativity(GR), so all classical tests are satisfied. We find that massive particles do not follow a geodesic while massless particles trajectories are null geodesies of an effective metric. In particular we study the Cosmological case, where we get an accelerated expansion of the universe without dark energy.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4913343