Dark energy, MOND and sub-millimeter tests of gravity

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dc.creatorNavarro, I.
dc.creatorVan Acoleyen, K.
dc.date2006-05-12
dc.date.accessioned2026-07-07T07:08:25Z
dc.date.available2026-07-07T07:08:25Z
dc.descriptionWe consider modifications of General Relativity obtained by adding the logarithm of some curvature invariants to the Einstein-Hilbert action. These non-linear actions can explain the late-time acceleration of the universe giving an expansion history that differs from that of a pure cosmological constant. We show that they also modify the Newtonian potential below a fixed acceleration scale given by the late-time Hubble constant times the speed of light. This is exactly what is required in MOND, a phenomenological modification of the Newtonian potential that is capable of explaining galactic rotation curves without the need to introduce dark matter. We show that this kind of modification also predicts short distance deviations of Newton's law at the sub-mm scale and an anomalous shift in the precession of the Moon's orbit around the Earth, both effects of a size that is less than an order of magnitude below current bounds.
dc.description6 pages, to appear in proceedings of the XLIrst Rencontres de Moriond
dc.identifierhttps://arxiv.org/abs/astro-ph/0605322
dc.identifierhttp://arxiv.org/abs/astro-ph/0605322
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/110701
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleDark energy, MOND and sub-millimeter tests of gravity
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