期刊
PHYSICAL REVIEW LETTERS
卷 101, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.040402
关键词
-
资金
- NSF
- ONR
We report on the observation of controllable phase separation in a dual-species Bose-Einstein condensate with Rb-85 and Rb-87. Interatomic interactions between the different components determine the miscibility of the two quantum fluids. In our experiments, we can clearly observe immiscible behavior via a dramatic spatial separation of the two species. Furthermore, a magnetic-field Feshbach resonance is used to change them between miscible and immiscible by tuning the Rb-85 scattering length. The spatial density pattern of the immiscible quantum fluids exhibits complex alternating-domain structures that are uncharacteristic of its stationary ground state.
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