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Detecting the breached pair phase in a polarized ultracold Fermi gas

W. Yi·L. -M. Duan
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Abstract

We propose a method for the experimental detection of a new quantum phase, the breached pair state, in a strongly interacting ultracold Fermi gas with population imbalance. We show that through the time-of-flight Raman imaging, the presence of such a phase can be unambiguously determined with a measurement of the momentum-space phase separation of the minority spin component. To guide the experimental efforts, the momentum-space density profiles are calculated under typical experimental conditions.

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W. Yi, L. -M. Duan. 2006-09-18. Detecting the breached pair phase in a polarized ultracold Fermi gas. https://doi.org/10.1103/physrevlett.97.120401

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