Abstract:
We describe the operation of a cold atom clock in reduced gravity. We have recorded the cesium hyperfine resonance signal at a frequency near 9.2 GHz in the gravity environment produced by jet plane parabolic flights. With a resonance width of 7 Hz, the device operated in a regime which is not accessible on earth. In the much lower gravity level of a satellite, our cold cesium clock would outperform the fountains with a potential accuracy of . This experiment paves the way to unprecedented performance in space applications such as tests of general relativity, global time dissemination, astronomy and geodesy.
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Received: 10 June 1998 / Accepted: 18 June 1998
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Laurent, P., Lemonde, P., Simon, E. et al. A cold atom clock in absence of gravity. Eur. Phys. J. D 3, 201–204 (1998). https://doi.org/10.1007/PL00021584
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DOI: https://doi.org/10.1007/PL00021584