Quantum physics exploring gravity in the outer solar system: the SAGAS project

P. Wolf, C.J. Borda©, A. Clairon, L. Duchayne, A. Landragin, P. Lemonde, G. Santarelli, W. Ertmer, E. Rasel, F.S. Cataliotti, M. Inguscio, G.M. Tino, P. Gill, H. Klein, S. Reynaud, C. Salomon, E. Peik, O. Bertolami, P. Gil, J. Pa¡ramosC. Jentsch, U. Johann, A. Rathke, P. Bouyer, L. Cacciapuoti, D. Izzo, P. Denatale, B. Christophe, P. Touboul, S.G. Turyshev, J. Anderson, Michael Tobar, F. Schmidt-Kaler, J. Vigua©, A.A. Madej, L. Marmet, M.C. Angonin, P. Delva, P. Tourrenc, G. Metris, H. Ma¼ller, R. Walsworth, Z.H. Lu, L.J. Wang, K. Bongs, A. Toncelli, M. Tonelli, H. Dittus, C. La¤mmerzahl, G. Galzerano, P. Laporta, J. Laskar, A. Fienga, F. Roques, K. Sengstock

    Research output: Contribution to journalArticlepeer-review

    105 Citations (Scopus)


    We summarise the scientific and technological aspects of the Searchfor Anomalous Gravitation using Atomic Sensors (SAGAS) project, submittedto ESA in June 2007 in response to the Cosmic Vision 2015–2025 call forproposals. The proposed mission aims at flying highly sensitive atomic sensors(optical clock, cold atom accelerometer, optical link) on a Solar System escapetrajectory in the 2020 to 2030 time-frame. SAGAS has numerous scienceobjectives in fundamental physics and Solar System science, for examplenumerous tests of general relativity and the exploration of the Kuiper belt.The combination of highly sensitive atomic sensors and of the laser linkwell adapted for large distances will allow measurements with unprecedentedaccuracy and on scales never reached before. We present the proposed missionin some detail, with particular emphasis on the science goals and associatedmeasurements and technologies.
    Original languageEnglish
    Pages (from-to)651-687
    JournalExperimental Astronomy
    Issue number2
    Publication statusPublished - 2009


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