Controlling phase separation of binary Bose-Einstein condensates via mixed-spin-channel Feshbach resonance

By S. Tojo, Y. Taguchi, Y. Masuyama, Taro Hayashi, H. Saito, T. Hirano. 2010

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We investigate controlled phase separation of a binary Bose-Einstein condensate in the proximity of a mixed-spin-channel Feshbach resonance in the |F=1,m{sub F}=+1> and |F=2,m{sub F}=-1> states of {sup 87}Rb at a magnetic field of 9.10 G. Phase separation occurs on the lower-magnetic-field side of the Feshbach resonance while the two components overlap on the higher-magnetic-field side. The Feshbach resonance curve of the scattering length is obtained from the shape of the atomic cloud by comparison with the numerical analysis of coupled Gross-Pitaevskii equations.

Subfields: Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/acf64993c4d4c345ed88711eff2d15a3567be1e5