Expansion of a Fermi gas interacting with a Bose-Einstein condensate

Year: 2004

Authors: Ferlaino F., De Mirandes E., Roati G., Modugno G., Inguscio M.

Autors Affiliation: Univ Florence, LENS, I-50019 Sesto Fiorentino, Italy; Univ Florence, Dipartimento Fis, I-50019 Sesto Fiorentino, Italy; INFM, I-50019 Sesto Fiorentino, Italy.

Abstract: We study the expansion of an atomic: Fermi gas interacting attractively with a Bose-Einstein condensate. We observe a slower evolution of the radial-to-axial aspect ratio which reveals the importance of the mutual attraction between the two samples during the first phase of the expansion. For large atom numbers, we also observe a bimodal momentum distribution of the Fermi gas, which reflects the spatial distribution of the mixture in trap. This effect allows us to extract important information on the overlap of the two species across the collapse.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 92 (14)      Pages from: 140405-1  to: 140405-4

More Information: We are grateful to X. J. Liu, H. Hu, M. Modugno, and ?>H. Ott for fruitful discussions and to F. Riboli for contributions to the experiment. This work was supported by MIUR, by EU under Contract No. HPRICT1999-00111, and by INFM, PRA “Photonmatter.”
KeyWords: Molecules; Atoms
DOI: 10.1103/PhysRevLett.92.140405

Citations: 20
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