Observation of phase separation in a strongly interacting imbalanced fermi gas.

@article{Shin2006ObservationOP,
  title={Observation of phase separation in a strongly interacting imbalanced fermi gas.},
  author={Y. Shin and Martin W. Zwierlein and Christian H. Schunck and André Schirotzek and Wolfgang Ketterle},
  journal={Physical review letters},
  year={2006},
  volume={97 3},
  pages={
          030401
        }
}
We have observed phase separation between the superfluid and the normal component in a strongly interacting Fermi gas with imbalanced spin populations. The in situ distribution of the density difference between two trapped spin components is obtained using phase-contrast imaging and 3D image reconstruction. A shell structure is clearly identified where the superfluid region of equal densities is surrounded by a normal gas of unequal densities. The phase transition induces a dramatic change in… 

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