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arxiv: 1908.11785 · v3 · pith:PQEYMIXMnew · submitted 2019-08-30 · ⚛️ physics.space-ph · astro-ph.IM

Exploring the Foundations of the Universe with Space Tests of the Equivalence Principle

Baptiste Battelier , Jo\"el Berg\'e , Andrea Bertoldi , Luc Blanchet , Kai Bongs , Philippe Bouyer , Claus Braxmaier , Davide Calonico
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Pierre Fayet Naceur Gaaloul Christine Guerlin Aur\'elien Hees Philippe Jetzer Claus L\"ammerzahl Steve Lecomte Christophe Le Poncin-Lafitte Sina Loriani Gilles M\'etris Miguel Nofrarias Ernst Rasel Serge Reynaud Manuel Rodrigues Markus Rothacher Albert Roura Christophe Salomon Stephan Schiller Wolfgang P. Schleich Christian Schubert Carlos Sopuerta Fiodor Sorrentino Tim J. Sumner Guglielmo M. Tino Philip Tuckey Wolf von Klitzing Lisa W\"orner Peter Wolf Martin Zelan
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classification ⚛️ physics.space-ph astro-ph.IM
keywords equivalenceprinciplespacetestsaccelerometersbetterbrieflydiscussed
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We present the scientific motivation for future space tests of the equivalence principle, and in particular the universality of free fall, at the $10^{-17}$ level or better. Two possible mission scenarios, one based on quantum technologies, the other on electrostatic accelerometers, that could reach that goal are briefly discussed.

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