Sympathetic cooling and collisional properties of a Rb-Cs mixture
Anno: 2005
Autori: Anderlini M., Courtade E., Cristiani M., Cossart D., Ciampini D., Sias C., Morsch O., Arimondo E.
Affiliazione autori: INFM, Dipartimento di Fisica E. Fermi, Università di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy
Abstract: We report on measurements of the collisional properties of a mixture of Cs-133 and Rb-87 atoms in a magnetic trap at mu K temperatures. By selectively evaporating the Rb atoms using a radio-frequency field, we achieved sympathetic cooling of Cs down to a few mu K. The interspecies collisional cross section was determined through rethermalization measurements, leading to good agreement with a theoretical prediction of 595a(0) for the triplet s-wave scattering length for Rb in the parallel to F=2,m(F)=2 > and Cs in the parallel to F=4,m(F)=4 > magnetic states. We briefly speculate on the prospects for reaching the Bose-Einstein condensation of Cs inside a magnetic trap through sympathetic cooling.
Giornale/Rivista: PHYSICAL REVIEW A
Volume: 71 (6) Da Pagina: 061401-1 A: 061401-4
Parole chiavi: Cold atoms; Atomic collisions; DOI: 10.1103/PhysRevA.71.061401Citazioni: 42dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-14Riferimenti 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