A few cosmological implications of tensor nonlocalities
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🌌 astro-ph.CO
gr-qchep-ph
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cosmologicalnonlocalitiestensornonlocalconsequencesconsidercontextcurvature
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We consider nonlocal gravity theories that include tensor nonlocalities. We show that in the cosmological context, the tensor nonlocalities, unlike scalar ones, generically give rise to growing modes. An explicit example with quadratic curvature terms is studied in detail. Possible consequences for recent nonlocal cosmological models proposed in the literature are also discussed.
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Nonlocal form factors in D-dimensional gravity yield effective geometries whose nonlinear completion gives regular, asymptotically flat Schwarzschild deformations with de Sitter cores.
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