Séminaire Doctorants / Seminar PhD students |
| « Seeking for Gravity: a tale of darkness, ghosts and hunters » |
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François Larrouturou |
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The search for an accurate model of gravity is a long story and was not always an easy ride (Galileo RPZ). But today, our current theory, General Relativity, passes all the tests with flying colors and is quite elegant,. Is it the end of the story? Hopefully for theorists, there are strong hints that we shall seek for a model "beyond General Relativity", that shall be healthy and agree with observational constraints (Solar System tests, binary pulsars motion, gravitational waves propagation,...).
In this YmCa, we will review those hints and see how to construct such alternative theories of gravity. We will then see how to distinguish between healthy theories and science-fiction. Finally we will focus on a concrete example, namely the "ghost-free massive gravity", to illustrate those concepts. |
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vendredi 19 avril 2019 - 16:00 Salle Entresol Daniel Chalonge, Institut d'Astrophysique |
| Page web du Séminaire / Seminar's webpage |