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Bremen 2017 – scientific programme

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GR: Fachverband Gravitation und Relativitätstheorie

GR 9: Experimentelle Tests 2

GR 9.3: Talk

Wednesday, March 15, 2017, 17:10–17:30, SFG 0140

BOOST: A Test of Special Relativity — •Lisa Wörner1, Thilo Schuldt2, Norman Gürlebeck1, Arne Grenzebach1, Markus Krutzik3, Thijs Wendrich4, Nadan Jha4, Domenico Geradi5, Ulrich Johann5, Claus Braxmaier1,2, Ernst Rasel4, Achim Peters3, and the BOOST collaboration1,2,3,4,51ZARM, University of Bremen — 2DLR — 3Humboldt University Berlin — 4Leibniz University Hanover — 5Airbus Defense and Space

BOOST is a mission that aims at testing the foundations of Special Relativity. The centre piece of BOOST is a Kennedy-Thorndike experiment [1] mounted on a satellite. It is dedicated to detect a potential boost dependence of the speed of light by comparing a length reference (i.e. a highly stable optical resonator) with a molecular frequency reference. Likewise experiments have been performed on Earth. The current best Earth-bound test has been performed by Tobar et al. [2] in 2010, being able to determine the Kennedy-Thorndike coefficient with an accuracy of 4 10−8. By operating a state-of-the-art experimental setup in space for a duration of two years that accuracy could theoretically be improvement to 1 10−10. With the restrictions induced by the choice of orbit and the achievable stability of the in-build clocks an improvement of the accuracy in the order of two orders of magnitude seems realistic.

[1] R.J. Kennedy, E.M. Thorndike, Physical Review, 42 (1932) 400-418. [2] M.E. Tobar, et al., Physical Review D, 81 (2010) 022003.

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