Direct comparisons of European primary and secondary frequency standards via satellite techniques

Autor: Riedel, F., Al-Masoudi, A., Benkler, E., Dörscher, S., Gerginov, V., Grebing, C., Häfner, S., Huntemann, N., Lipphardt, B., Lisdat, C., Peik, E., Piester, D., Sanner, C., Tamm, C., Weyers, S., Denker, H., Timmen, L., Voigt, C., Calonico, D., Cerretto, G., Costanzo, G. A., Levi, F., Sesia, I., Achkar, J., Guèna, J., Abgrall, M., Rovera, D., Chupin, B., Shi, C., Bilicki, S., Bookjans, E., Lodewyck, J., Targat, R. Le, Delva, P., Bize, S., Baynes, F. N., Baynham, C. F. A., Bowden, W., Gill, P., Godun, R. M., Hill, I. R., Hobson, R., Jones, J. M., King, S. A., Nisbet-Jones, P. B. R., Rolland, A., Shemar, S. L., Whibberley, P. B., Margolis, H. S.

We carried out a 26-day comparison of five simultaneously operated optical clocks and six atomic fountain clocks located at INRIM, LNE-SYRTE, NPL and PTB by using two satellite-based frequency comparison techniques: broadband Two-Way Satellite Time a

Externí odkaz: http://arxiv.org/abs/1910.06736

Testing local position and fundamental constant invariance due to periodic gravitation and boost using long-term comparison of the SYRTE atomic fountains and H-masers

Autor: Tobar, M. E., Stanwix, P. L., McFerran, J. J., Guéna, J., Abgrall, M., Bize, S., Clairon, A., Laurent, Ph., Rosenbusch, P., Rovera, D., Santarelli, G.

The frequencies of three separate Cs fountain clocks and one Rb fountain clock have been compared to various hydrogen masers to search for periodic changes correlated with the changing solar gravitational potential at the Earth and boost with respect

Externí odkaz: http://arxiv.org/abs/1306.1571

Demonstration of a Dual Alkali Rb/Cs Atomic Fountain Clock

Autor: Guéna, J., Rosenbusch, P., Laurent, Ph., Abgrall, M., Rovera, D., Lours, M., Santarelli, G., Tobar, M. E., Bize, S., Clairon, A.

Publikováno v: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 57, 647 (2010)

We report the operation of a dual Rb/Cs atomic fountain clock. 133Cs and 87Rb atoms are cooled, launched, and detected simultaneously in LNE-SYRTE's FO2 double fountain. The dual clock operation occurs with no degradation of either the stability or t

Externí odkaz: http://arxiv.org/abs/1301.0483

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Improved Tests of Local Position Invariance Using Rb 87 and Cs 133 Fountains

Autor: Guéna, J., Abgrall, M., Rovera, D., Rosenbusch, P., Tobar, M., Laurent, Ph., Clairon, A., Bize, S.

Publikováno v: Physical Review Letters
Physical Review Letters, 2012, 109 (8), ⟨10.1103/PhysRevLett.109.080801⟩
Physical Review Letters, American Physical Society, 2012, 109 (8), ⟨10.1103/PhysRevLett.109.080801⟩

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::efe5dae1129663ff942efe3917a0af75
https://hal.science/hal-03000621/document