Philippe Brax will review some of the recently uncovered connections between dark energy and modified gravity. Dark energy involves light scalar fields which would naturally lead to deviations from Newton's law in the solar system. Those are extremely constrained by gravity tests. He will present how one can reconcile dark energy on large cosmological scales with gravity as tested in the solar systems. For that, he will introduce screened modified gravity models and discuss their properties.
Philippe Brax (IPHT) Chairman: Joe Silk