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

Baptiste Battelier 1 Joël Bergé 2 Andrea Bertoldi 1 Luc Blanchet 3 Kai Bongs 4 Philippe Bouyer 1 Claus Braxmaier 5, 6 Davide Calonico 7 Pierre Fayet 8 Naceur Gaaloul 9 Christine Guerlin 10 Aurelien Hees 11 Philippe Jetzer 12 Claus Lämmerzahl 6 Steve Lecomte 13 Christophe Le Poncin-Lafitte 11 S. Loriani 9 Gilles Métris 14 M. Nofrarias 15, 16 Ernst Rasel 9 Serge Reynaud 10 Manuel Rodrigues 2 Markus Rothacher 17 Albert Roura 18 Christophe Salomon 10 Stephan Schiller 19 Wolfgang P. Schleich 18 C. Schubert 9 Carlos Sopuerta 15, 16 Fiodor Sorrentino 20 Tim J. Sumner 21 Guglielmo M. Tino 22, 23 Philip Tuckey 11 Wolf von Klitzing 24 Lisa Wörner 5, 6 Peter Wolf 11 Martin Zelan 25
Abstract : 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. This publication is a White Paper written in the context of the Voyage 2050 ESA Call for White Papers.
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Submitted on : Thursday, September 9, 2021 - 5:19:03 PM
Last modification on : Tuesday, October 19, 2021 - 7:01:48 PM


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Baptiste Battelier, Joël Bergé, Andrea Bertoldi, Luc Blanchet, Kai Bongs, et al.. Exploring the Foundations of the Physical Universe with Space Tests of the Equivalence Principle. Experimental Astronomy, Springer Link, In press, ⟨10.1007/s10686-021-09718-8⟩. ⟨hal-02418020v2⟩



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