Work

K39 Bose-Einstein Condensate with Tunable Interactions

Year: 2007

Type: article

Abstract: We produce a Bose-Einstein condensate of 39K atoms. Condensation of this species with a naturally small and negative scattering length is achieved by a combination of sympathetic cooling with 87Rb and direct evaporation, exploiting the magnetic tuning of both inter- and intraspecies interactions at Feshbach resonances. We explore the tunability of the self-interactions by studying the expansion and the stability of the condensate. We find that a 39K condensate is interesting for future experiments requiring a weakly-interacting Bose gas.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.99.010403

Authors: G. Roati, M. Zaccanti, C. D’Errico, J. Catani, M. Modugno, A. Simoni, M. Inguscio, G. Modugno

Institutions: Istituto Nazionale di Fisica Nucleare, Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, University of Florence, University of Trento, Centre National de la Recherche Scientifique, Université de Rennes

Language: Latvian

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2035742995

FWCI: 10.98

Cites: 34

Cited by: 239

Related to: 10