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Using a non-minimal coupling between matter and curvature to sequester the Cosmological Constant

We present a novel mechanism for generating a Cosmological Constant and suitably sequestering the vacuum contribution to it, so that the eponymous Cosmological Constant problem is avoided. We do so by resorting to a model endowed with a non-minimal coupling between curvature and matter in an appropriately defined relaxed regime, and show that this shares features with both Unimodular gravity as well as a recent proposal to sequester the vacuum contribution through the use of an external term to the action functional.

preprint2020arXivOpen access
Orfeu BertolamiJorge Páramos
gr-qc
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Open access2 authors1 topic
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Orfeu BertolamiJorge Páramos

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