First observation of feshbach resonances at very low magnetic field in a 133Cs fountain

H. Marion, S. Bize, L. Cacciapuoti, D. Chambon, F. Pereira Dos Santos, G. Santarelli, P. Wolf, A. Clairon, A. Luiten, M. Tobar, S. Kokkelmans, C. Salomon

    Research output: Contribution to journalArticleAcademicpeer-review

    20 Downloads (Pure)

    Abstract

    One of the main limitations of cesium atomic fountains has been the cold collision frequency shift. By using a method based on a transfer of population by adiabatic passage allowing to prepare cold atomic samples with a well defined ratio of atomic density as well as atom number the collisional shift is controlled at the 10E-3 of its value. A calibration of Zeeman sub-states contribution to the clock shift as a function of the field has been performed. Feshbach resonances have been observed for the first time at very low magnetic field and with a very good resolution. A Monte Carlo simulation has been performed and could fit properly some of experimental data. This constrains some parameters of the theory of collisions.
    Original languageEnglish
    JournalarXiv.org, e-Print Archive, Physics
    Issue number0407064
    Publication statusPublished - 1 Jul 2004

    Keywords

    • Physics - Atomic Physics
    • Condensed Matter - Other

    Fingerprint

    Dive into the research topics of 'First observation of feshbach resonances at very low magnetic field in a 133Cs fountain'. Together they form a unique fingerprint.

    Cite this