Ultracold atoms: cold atom clocks

COLD ATOM CLOCKS

(P. Lemonde*, C. Salomon, A. Clairon*, P. Laurent*, E. Simon*, G. Santarelli*, Y. Sortais*, S. Bize*, M. Abgrall*)

* BNM-Système Référence Temps-Espace, 61, avenue de l'Observatoire 75014 Paris France


Experimental set-up for microgravity experiments

Recent publications:

LAURENT P., LEMONDE P., SIMON E., SANTARELLI G.,CLAIRON A., PETIT P., DIMARCQ N., AUDOIN C., SALOMON C.
European Physical Journal. D, 3, 201 (1998) : A cold atom clock in absence of gravity.

LAURENT P., LEMONDE P., SIMON E., SANTARELLI G., PETIT P., DIMARCQ N., CLAIRON A., SALOMON C., AUDOIN C., JAMIN-CHANGEART F., GONZALEZ F., Bulletin du Bureau National de Métrologie, n° 109, p. 11 (1997): Un prototype spatial d'horloge utilisant des atomes refroidis par laser.

SPALLICCI A., BRILLET A., BUSCA, G., CASTATINI G., PINTO I. ROXBURGH I., SALOMON C., SOFFEL M., VEILLET C.,
Class. Quantum Grav., 14, 2971 (1997) : Experiments in fundamental physics on the space station.

SANTARELLI G., LAURENT P., CLAIRON A., MANN A., CHANG S., LUITEN A., SALOMON C.,
Phys.Rev. Lett., 82, 4619 (1999): Observation of quantum projection noise in an atomic fountain clock.

BIZE S., SORTAIS Y., SANTOS M., MANDACHE C., CLAIRON A., SALOMON C.,
Europhys. Lett., 45, 558 (1999) : A high accuray measurement of the ⁸⁷Rb hyperfine splitting in an atomic fountain.

LEMONDE P., LAURENT P., SIMON E., SANTARELLI G., CLAIRON A., SALOMON C., DIMARCQ N., PETIT P.,
IEEE Trans. Inst. Meas., 48, 512 (1999): Test of a cold atom clock prototype in absence of gravity.

BIZE S., SORTAIS Y., LEMONDE P., ZHANG S., LAURENT P., SANTARELLIG., SALOMON C., CLAIRON A.,
IEEE Trans. on Ultr., Ferr. and Freq.Contr., 47, 1253,: Interrogation Oscillator Noise Rejection in the Comparison of Atomic Fountains.

SORTAIS Y., BIZE S., NICOLAS C., SANTARELLI G., SALOMON C., CLAIRON A.,
IEEE Trans. on Ultr., Ferr. and Freq. Contr., 47, 1093, : ⁸⁷Rb versus ¹³³Cs in cold atom fountains: a comparison.

UHRICH P., GUILLEMOT P., AUBRY P., GONZALEZ F., SALOMON C.,
IEEE Trans. on Ultr., Ferr. and Freq. Contr., 47,1134, : ACES microwave link requirements.

NIERING M., HOLZWARTH R., REICHERT J., POKASOV P., UDEM T., WEITZ M., HÄNSCH T., LEMONDE P., SANTARELLI G., ABGRALL M., LAURENT P.,SALOMON C., CLAIRON A.,
Phys. Rev. Lett. 84, 5496 (2000) : Measurement of the 1S-2S Transition Frequency by Phase Coherent Comparison with a Microwave Cesium fountain Clock.

SORTAIS Y., BIZE S., NICOLAS C., CLAIRON, SALOMON C., WILLIAMS C.,
Phys. Rev. Lett. 85, 3117 (2000) : Cold collision frequency shifts in a ⁸⁷Rb atomic fountain.

BLANCHET L. , SALOMON C., TEYSSANDIER P., WOLF P.,
Acta Astronomica (2001) : Relativistic theory for time and frequency transfer to order _^-3