Photoionization of ultracold and Bose-Einstein-condensed Rb atoms

Year: 2002

Authors: Ciampini D., Anderlini M., Mueller J.H., Fuso F., Morsch O., Thomsen J.W., Arimondo E.

Autors Affiliation: INFM, Dipartimento di Fisica E. Fermi, Università di Pisa, Via Buonarroti 2, I-56127 Pisa, Italy

Abstract: Photoionization of a cold atomic sample offers intriguing possibilities for observing collective effects at extremely low temperatures. Irradiation of a rubidium condensate and of cold rubidium atoms within a magneto-optical trap (MOT) with laser pulses ionizing through one-photon and two-photon absorption processes was performed. Losses and modifications in the density profile of the remaining trapped cold cloud or the remaining condensate sample were examined as functions of the ionizing laser parameters. Ionization cross sections were measured for atoms in a MOT, while in magnetic traps losses larger than those expected for ionization process were measured.


Volume: 66 (4)      Pages from: 043409-1  to: 043409-8

KeyWords: Bose-Einstein condensation; Photoionization;
DOI: 10.1103/PhysRevA.66.043409

Citations: 39
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