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, Pierre Fayet,, Naceur Gaaloul, Christine Guerlin, Aur\'elien Hees, Philippe Jetzer, Claus, L\"ammerzahl, Steve Lecomte, Christophe Le Poncin-Lafitte
TL;DR
This paper discusses future space experiments designed to test the equivalence principle at extremely high precision, aiming to deepen our understanding of fundamental physics.
Contribution
It introduces two potential mission concepts, one utilizing quantum technologies and the other electrostatic accelerometers, to achieve unprecedented testing accuracy.
Findings
Proposes space tests of the equivalence principle at 10^{-17} level.
Highlights two feasible mission scenarios for high-precision measurements.
Emphasizes the importance of these tests for fundamental physics.
Abstract
We present the scientific motivation for future space tests of the equivalence principle, and in particular the universality of free fall, at the 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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