Formation of cold Cs ground state molecules through photoassociation in the pure long-range state
Anno: 2000
Autori: Comparat D., Drag C., Laburthe Tolra B., Fioretti A., Pillet P., Crubellier A., Dulieu O., Masnou-Seeuws F.
Affiliazione autori: Laboratoire Aimé Cotton, University of Paris-Sud., CNRS II, bâtiment 505, 91405 Orsay, France
Abstract: We report on the formation of translationally cold Cs-2 ground state molecules through photoassociation in the 1(u) attractive molecular state below the 6s(1/2)+6p(3/2) dissociation limit. The cold molecules are obtained after spontaneous decay of photoassociated molecules in a MOT and in a dark SPOT. We also used polarized atoms, in the f = 3, m(f) = +3 Zeeman ground state. Purely asymptotic and adiabatic calculations including hyperfine interaction and rotation are in excellent agreement with observed structures. As expected, the 1(u) state is actually a pure long-range state, consisting of paired atoms, uniquely linked by the first terms of the multipole expansion of the electrostatic interaction. A temperature of 20(-5)(+15) mu K has been measured for the molecular cloud.
Giornale/Rivista: EUROPEAN PHYSICAL JOURNAL D
Volume: 11 (1) Da Pagina: 59 A: 71
Parole chiavi: Optical cooling of atoms; Trapping; Molecular spectra; Interatomic and intermolecular potentials and forces; CcollisionsDOI: 10.1007/s100530070105Citazioni: 67dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-28Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui