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Jeudi 11 avril

14h00 – 15h00, Amphi 5 du CPT

Testing the equivalence principle on cosmic scales

Pierre Fleury (University of Geneva)

The equivalence principle is the main pillar of relativistic gravitation. Albeit exquisitely constrained on Earth and in the Solar System, its validity remains to be proved on cosmic scales, especially when the unknown dark matter is concerned. In this talk, I will show that relativistic effects in galaxy surveys offer the possibility to directly test the equivalence principle. Ten-percent level constraints on its deviations are achievable with future surveys like the Square Kilometer Array.

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