ForschungTopical Groups
Tests of fundamental physics: Gravity

Tests of fundamental physics: Gravity


  • Sophisticated tests of Einsteins's theory of relativity, e.g. possible temporal variation of the gravitational constant, test of the weak and strong equivalence principle, Yukawa-test for the Earth-Moon distance, estimation of metric parameters gamma and alpha
  • Measuring gravity at short distances with micro-machined optomechanical force sensors
  • Relativistic effects in matter wave interferometers, quantum tests of the equivalence principle, dark energy search in the Einstein Elevator
  • Clock tests in gravitational fields


Biskupek L, Müller J, Torre JM. Benefit of new high-precision llr data for the determination of relativistic parameters. Universe. 2021 Feb;7(2). 34. doi.org/10.3390/universe7020034

Singh VV, Biskupek L, Müller J, Zhang M. Impact of non-tidal station loading in LLR. Advances in space research. 2021 Jun 15;67(12):3925-3941. doi.org/10.1016/j.asr.2021.03.018

Zhong L, Sośnica K, Weigelt M, Liu B, Zou X. Technical note time-variable gravity field from the combination of hlsst and slr. Remote sensing. 2021 Sep;13(17). 3491. doi.org/10.3390/rs13173491

Zhang M, Müller J, Biskupek L. Test of the equivalence principle for galaxy’s dark matter by lunar laser ranging. Celestial Mechanics and Dynamical Astronomy. 2020 Apr 1;132(4). 25. doi.org/10.1007/s10569-020-09964-6

Involved QF Members
Members Institution Relevant Expertise
Eva Hackmann, LeaderZARMTests of GR and of alternative/modified theories of gravity
Claus LämmerzahlZARMQuantum Sensors in Free Fall; Relativistic Geodesy; Quantum Objects in Gravity
Florian SeemannZARMQuantum Sensors in Free Fall
Roy BarzelZARMQuantum Objects in Gravity
Jürgen MüllerLUHRelativistic Geodesy; LLR Relativity Test; Application of Quantum Gravimetry
Liliane BiskupekLUHLLR Relativity Test
Ernst M. RaselLUHQuantum Gravimeters; Atom-Chip Based Gravimeters and Inertial Sensors
Uwe BrandPTBExperimental investigation of the Gravitational 1/r2 Law at separations down to sub-µm
Gerhard HeinzelAEIExperimental investigation of the Gravitational 1/r2 Law at separations down to sub-µm
Christian PfeiferZARMGeneral relativity, Quantum Gravity Phenomenology
Sven HerrmannZARMmicrogravity experiments
Christian VogtZARMmicrogravity experiments