The performance of optical clocks has strongly progressed in recent years, and accuracies and instabilities of 1 part in 1018 are expected in the near future. The operation of optical clocks in space provides new scientific and technological opportunities. In particular, an earth-orbiting satellite containing an ensemble of optical clocks would allow a precision measurement of the gravitational redshift, navigation with improved precision, mapping of the earth's gravitational potential by relativistic geodesy, and comparisons between ground clocks.
Optical Clocks in Space / S. SCHILLER, A. GOERLITZ, A. NEVSKY, J.C. J.KOELEMEIJ, A. WICHT, P. GILL, H.A. KLEIN, H.S. MARGOLIS, G. MILETI, U. STERR, F. RIEHLE, E. PEIK, C. TAMM, W. ERTMER, E. RASEL, V. KLEIN, C. SALOMON, G.M. TINO, P. LEMONDE, R. HOLZWARTH, et al.. - In: NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS. - ISSN 0920-5632. - STAMPA. - 166:(2007), pp. 300-302. [10.1016/j.nuclphysbps.2006.12.032]
Optical Clocks in Space
TINO, GUGLIELMO MARIA;
2007
Abstract
The performance of optical clocks has strongly progressed in recent years, and accuracies and instabilities of 1 part in 1018 are expected in the near future. The operation of optical clocks in space provides new scientific and technological opportunities. In particular, an earth-orbiting satellite containing an ensemble of optical clocks would allow a precision measurement of the gravitational redshift, navigation with improved precision, mapping of the earth's gravitational potential by relativistic geodesy, and comparisons between ground clocks.
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2007 optical clocks.pdf
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