• DocumentCode
    2089651
  • Title

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

  • Author

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

  • Author_Institution
    BNM-SYRTE, Obs. de Paris, Paris
  • fYear
    2004
  • fDate
    5-7 April 2004
  • Firstpage
    49
  • Lastpage
    55
  • Abstract
    For a long time, 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 (AP) allowing to prepare cold atomic samples with a well defined ratio of atomic density as well as atom number we have a better measurement of this effect. By improving the method we found out some unexpected properties of cold collisions, confirming that 133Cs is a rich atom to study cold collisions. Those results lead to fine comparisons with cold collision theory and may constraint some parameters of cesium.
  • Keywords
    atomic clocks; atomic collisions; caesium; frequency standards; laser cooling; resonant states; 133Cs; Feshbach resonance; adiabatic passage; atomic density; cesium atomic fountain; cold collision frequency shift; frequency standards; Atomic fountain; Feshbach resonance; adiabatic passage; cold collisions; cryogenic oscillator; frequency measurement;
  • fLanguage
    English
  • Publisher
    iet
  • Conference_Titel
    Frequency and Time Forum, 2004. EFTF 2004. 18th European
  • Conference_Location
    Guildford
  • ISSN
    0537-9989
  • Print_ISBN
    0-86341-384-6
  • Type

    conf

  • Filename
    5074904
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2089651