Fermi-Bose quantum degenerate 40K-87Rb mixture with attractive interaction
Year: 2002
Authors: Roati G., Riboli F., Modugno G., Inguscio M.
Autors Affiliation: Univ Florence, European Lab Nonlinear Spect, I-50019 Sesto Fiorentino, Italy; Univ Florence, Dipartimento Fis, I-50019 Sesto Fiorentino, Italy; INFM, I-50019 Sesto Fiorentino, Italy; Univ Trent, Dipartimento Fis, I-38050 Povo, Italy.
Abstract: We report on the achievement of simultaneous quantum degeneracy in a mixed gas of fermionic K-40 and bosonic Rb-87. Potassium is cooled to 0.3 times the Fermi temperature by means of an efficient thermalization with evaporatively cooled rubidium. Direct measurement of the collisional cross-section confirms a large interspecies attraction. This interaction is shown to affect the expansion of the Bose-Einstein condensate released from the magnetic trap, where it is immersed in the Fermi sea.
Journal/Review: PHYSICAL REVIEW LETTERS
Volume: 89 (15) Pages from: 150403-1 to: 150403-4
KeyWords: Einstein CondensationDOI: 10.1103/PhysRevLett.89.150403Citations: 361data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-10-20References taken from IsiWeb of Knowledge: (subscribers only)