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arxiv: gr-qc/0608081 · v1 · submitted 2006-08-17 · 🌀 gr-qc · quant-ph

Optical Clocks in Space

S. Schiller , A. Goerlitz , A. Nevsky , J.C.J. Koelemeij , A. Wicht , P. Gill , H. A. Klein , H. S. Margolis
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G. Mileti U. Sterr F. Riehle E. Peik Chr. Tamm W. Ertmer E. Rasel V. Klein C. Salomon G.M. Tino P. Lemonde R. Holzwarth T.W. Haensch
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classification 🌀 gr-qc quant-ph
keywords clocksopticalgravitationalprecisionspaceaccuraciesallowcomparisons
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The performance of optical clocks has strongly progressed in recent years, and accuracies and instabilities of 1 part in 10^18 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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