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

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

2010-07-16

arxiv.org/abs/1007.2690v1

Physics

Condensed Matter

Quantum Gases

6 pages, 5 figures

Scientific paper

We investigate controlled phase separation of a binary Bose-Einstein condensate (BEC) in the proximity of mixed-spin-channel Feshbach resonance in the |F = 1, mF = +1> and |F = 2,mF = -1> states of 87Rb 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.

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