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GAUGE: the GrAnd Unification and Gravity Explorer |
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| Authors: | G. Amelino-Camelia K. Aplin M. Arndt J. D. Barrow R. J. Bingham C. Borde P. Bouyer M. Caldwell A. M. Cruise T. Damour P. D’Arrigo H. Dittus W. Ertmer B. Foulon P. Gill G. D. Hammond J. Hough C. Jentsch U. Johann P. Jetzer H. Klein A. Lambrecht B. Lamine C. Lämmerzahl N. Lockerbie F. Loeffler J. T. Mendonca J. Mester W.-T. Ni C. Pegrum A. Peters E. Rasel S. Reynaud D. Shaul T. J. Sumner S. Theil C. Torrie P. Touboul C. Trenkel S. Vitale W. Vodel C. Wang H. Ward A. Woodgate |
| Affiliation: | 1. Dipartmento di Fisica, Universita Roma “La Sapienza”, Rome, Italy 2. Science and Technology Facilities Council, Rutherford Appleton Laboratory, Didcot, UK 3. Institut für Experimentalphysik, Universit?t Wien, Vienna, Austria 4. Department of Applied Mathematics and Theoretical Physics, Cambridge, UK 5. Systemes de Reference Temps Espace/Laboratoire de Physique des Lasers, Paris, France 6. Laboratoire Charles Fabry, Institut d’Optique, Palaiseau, France 7. University of Birmingham, Birmingham, UK 8. Institut des Hautes Etudes Scientifiques, Bures-sur-Yvette, France 9. EADS Astrium, Stevenage, UK 10. ZARM, University of Bremen, Bremen, Germany 11. Institute for Quantum Optics, Leibniz Universit?t Hannover, Hanover, Germany 12. ONERA, Chatillon, France 13. National Physics Laboratory, Teddington, UK 14. Institute of Gravitational Research, University of Glasgow, Glasgow, UK 15. EADS, Astrium, Friedrichshafen, Germany 16. Institute for Theoretical Physics, University of Zurich, Zurich, Switzerland 17. Laboratoire Kastler Brossel, Paris, France 18. University of Strathclyde, Glasgow, UK 19. Physikalisch-Technnische Bundesanstalt, Braunschweig, Germany 20. Instituto Superior Técnico, Lisbon, Portugal 21. Stanford University, Standford, USA 22. Purple Mountain Obervatory, Nanjing, China 23. Humboldt University, Berlin, Germany 24. Imperial College London, London, UK 25. University of Trento, Trento, Italy 26. Friedrich-Schiller-Universit?t, Jena, Germany 27. University of Aberdeen, Aberdeen, UK |
| Abstract: | The GAUGE (GrAnd Unification and Gravity Explorer) mission proposes to use a drag-free spacecraft platform onto which a number of experiments are attached. They are designed to address a number of key issues at the interface between gravity and unification with the other forces of nature. The equivalence principle is to be probed with both a high-precision test using classical macroscopic test bodies, and, to lower precision, using microscopic test bodies via cold-atom interferometry. These two equivalence principle tests will explore string-dilaton theories and the effect of space–time fluctuations respectively. The macroscopic test bodies will also be used for intermediate-range inverse-square law and an axion-like spin-coupling search. The microscopic test bodies offer the prospect of extending the range of tests to also include short-range inverse-square law and spin-coupling measurements as well as looking for evidence of quantum decoherence due to space–time fluctuations at the Planck scale. |
| Keywords: | Fundamental physics Space mission Equivalence principle Mass– spin coupling Atom interferometry |
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