Tests of Fundamental Physics: Gravity

Tests of Fundamental Physics: Gravity

Design and realisation of tests of General Relativity, studying gravity at very short distances, relativistic effects in matter wave interferometers.


  • 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 and levitated nanoparticle based 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
  • Testing local Lorentz invariance with classical and quantum systems in the solar system
  • Tests of fundamental properties of quantum mechanics, including tests of the interaction of quantum systems with gravitation

Scientific Output

  • Publications

    Albers H, Corgier R, Herbst A, Rajagopalan A, Schubert C, Vogt C et al. All-optical matter-wave lens using time-averaged potentials. Communications Physics. 2022 Mar 16;5(1). 60.


    Bahamonde S, Golovnev A, Guzmán M, Said JL, Pfeifer C. Black holes in f(T,B) gravity: exact and perturbed solutions. Journal of Cosmology and Astroparticle Physics. 2022 Jan 19;2022(1):037. 037.

    Bahamonde S, Faraji S, Hackmann E, Pfeifer C. Thick accretion disk configurations in the Born-Infeld teleparallel gravity. Physical Review D. 2022 Oct 26;106(8). 084046.

    Herbst A, Albers H, Stolzenberg K, Bode S, Schlippert D. Rapid generation of all-optical K39 Bose-Einstein condensates using a low-field Feshbach resonance. Physical Review A. 2022 Oct 21;106(4). 043320.

    Singh VV, Biskupek L, Müller J, Zhang M. Earth rotation parameter estimation from LLR. Advances in Space Research. 2022 Oct 15;70(8):2383-2398.

    Spengler F, Rätzel D, Braun D. Perspectives of measuring gravitational effects of laser light and particle beams. New journal of physics. 2022 May 10;24(5). 053021.

    Zhang M, Müller J, Biskupek L, Singh VV. Characteristics of differential lunar laser ranging. Astronomy and Astrophysics. 2022 Mar;659. A148.

    Biskupek L, Müller J, Torre JM. Benefit of new high-precision llr data for the determination of relativistic parameters. Universe. 2021 Feb 3;7(2). 34.

    Deppner C, Herr W, Cornelius M, Stromberger P, Sternke T, Grzeschik C et al. Collective-Mode Enhanced Matter-Wave Optics. Physical review letters. 2021 Sep 3;127(10). 100401.

    Frye K, Abend S, Bartosch W, Bawamia A, Becker D, Blume H et al. The Bose-Einstein Condensate and Cold Atom Laboratory. EPJ Quantum Technology. 2021 Jan 4;8(1). 1.


    Gebbe M, Siemß J-N, Gersemann M, Müntinga H, Herrmann S, Lämmerzahl C et al. Twin-lattice atom interferometry. Nature Communications. 2021 May 5;12(1). 2544.

    Hensel T, Loriani S, Schubert C, Fitzek F, Abend S, Ahlers H et al. Inertial sensing with quantum gases: a comparative performance study of condensed versus thermal sources for atom interferometry. European Physical Journal D. 2021 Mar 22;75. 108.

    List M, Lämmerzahl C. Das Äquivalenzprinzip: Grundlagen, Tests und neueste Messungen. Springer, 2021.

    Pfeifer C, Schuster S. Static spherically symmetric black holes in weak f (T)-gravity. Universe. 2021;7(5). 153.

    Roura A, Schubert C, Schlippert D, Rasel EM. Measuring gravitational time dilation with delocalized quantum superpositions. Physical Review D. 2021 Oct 1;104(8). 084001.

    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.


    Zhong L, Sośnica K, Weigelt M, Liu B, Zou X. Time-Variable Gravity Field from the Combination of HLSST and SLR. Remote sensing. 2021 Sep 2;13(17). 3491.

    Albers H, Herbst A, Richardson LL, Heine H, Nath D, Hartwig J et al. Quantum test of the Universality of Free Fall using rubidium and potassium. European Physical Journal D. 2020 Jul 7;74(7). 145.


    Canuel B, Abend S, Amaro-Seoane P, Badaracco F, Beaufils Q, Bertoldi A et al. ELGAR: a European Laboratory for Gravitation and Atom-interferometric Research. Classical and Quantum Gravity. 2020 Oct 28;37(22). 225017.


    Corgier R, Loriani S, Ahlers H, Posso-Trujillo K, Schubert C, Rasel EM et al. Interacting quantum mixtures for precision atom interferometry. New Journal of Physics. 2020 Dec 11;22(12). 123008.

    Hendi SH, Tavakkoli AM, Panahiyan S, Panah BE, Hackmann E. Simulation of geodesic trajectory of charged BTZ black holes in massive gravity. European Physical Journal C. 2020 Jun 1;80(6). 524.

    Hohmann M, Pfeifer C, Voicu N. Relativistic kinetic gases as direct sources of gravity. Physical Review D. 2020 Jan 15;101(2). 024062.

    Loriani S, Schubert C, Schlippert D, Ertmer W, Pereira Dos Santos F, Rasel EM et al. Resolution of the colocation problem in satellite quantum tests of the universality of free fall. Physical Review D. 2020 Dec 18;102(12). 124043.


    Sheoran P, Nandan H, Hackmann E, Nucamendi U, Abebe A. Schwarzschild black hole surrounded by quintessential matter field as an accelerator for spinning particles. Physical Review D. 2020 Sep;102(6). 064046.

    Ufrecht C, Pumpo FD, Friedrich A, Roura A, Schubert C, Schlippert D et al. Atom-interferometric test of the universality of gravitational redshift and free fall. Phys. Rev. Research. 2020 Nov 16;2(4). 043240.

    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 May 14;132(4). 25.

    Müller J, Murphy TW, Schreiber U, Shelus PJ, Torre JM, Williams JG et al. Lunar Laser Ranging: A tool for general relativity, lunar geophysics and Earth science. Journal of geodesy. 2019 Nov;93(11):2195-2210.

    Schubert C, Schlippert D, Abend S, Giese E, Roura A, Schleich WP et al. Scalable, symmetric atom interferometer for infrasound gravitational wave detection. 2019.

Members and Competences

  • Involved Members and their Relevant Expertise
    Members Institution Relevant Expertise
    Eva Hackmann, Leader ZARM Tests of GR and of alternative/modified theories of gravity
    Claus Lämmerzahl ZARM Quantum Sensors in Free Fall; Relativistic Geodesy; Quantum Objects in Gravity
    Florian Seemann ZARM Quantum Sensors in Free Fall
    Roy Barzel ZARM Quantum Objects in Gravity
    Jürgen Müller LUH Relativistic Geodesy; LLR Relativity Test; Application of Quantum Gravimetry
    Liliane Biskupek LUH LLR Relativity Test
    Ernst M. Rasel LUH Quantum Gravimeters; Atom-Chip Based Gravimeters and Inertial Sensors
    Uwe Brand PTB Experimental investigation of the Gravitational 1/r2 Law at separations down to sub-µm
    Gerhard Heinzel AEI Experimental investigation of the Gravitational 1/r2 Law at separations down to sub-µm
    Christian Pfeifer ZARM General relativity, Quantum Gravity Phenomenology
    Sven Herrmann ZARM microgravity experiments
    Christian Vogt ZARM microgravity experiments
    Dennis Philipp ZARM  
    Mingyue Zhang LUH  
    Vishwa Singh LUH  
    Naceur Gaaloul LUH  
    Christian Schubert LUH  
    Dennis Schlippert LUH  
    Dennis Rätzel ZARM Tests of GR and modified gravity, Quantum Objects in Gravity
    Sven Abend LUH  
    Marian Cepok ZARM  
    Ekim Hanimeli ZARM  
    Shokoufe Faraji ZARM  
    Akbar Shabanloui LUH IFE gravtiy field recovery