2013•elib (German Aerospace Center)Requires access
STE-QUEST: Testing the Equivalence Principle Using Cold Atom Interferometry
Thilo Schuldt, Naceur Gaaloul, Sven Herrmann, Arnauld Landragin, Philippe Bouyer, Kai Bongs, K. Sengstock, Wolf von Klitzing, Carlos F. Sopuerta, Cláus Lämmerzahl, Achim Peters, Claus Braxmaier, E. M. Rasel, team Ste-Quest
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Abstract
The Space-Time Explorer and Quantum Equivalence Principle Space Test (STE-QUEST) mission is devoted to test Einstein’s Theories of Special and General Relativity using an atomic optical clock and a differential dual-species atom interferometer operated in a highly elliptical Earth orbit. As science objectives, STE-QUEST will measure the Earth gravitational redshift with a fractional uncertainty of 10-7, the Sun gravitational redshift with a fractional uncertainty of 2⋅10-6 and the Weak Equivalence Principle by testing the universality of free propagation of matter waves with an uncertainty of 1⋅10-15 in terms of Eötvös parameter.