Pairing without superfluidity: the ground state of an imbalanced Fermi mixture.
نویسندگان
چکیده
We used radio-frequency spectroscopy to study pairing in the normal and superfluid phases of a strongly interacting Fermi gas with imbalanced spin populations. At high spin imbalances, the system does not become superfluid even at zero temperature. In this normal phase, full pairing of the minority atoms was observed. Hence, mismatched Fermi surfaces do not prevent pairing but can quench the superfluid state, thus realizing a system of fermion pairs that do not condense even at the lowest temperature.
منابع مشابه
Fermionic Superfluidity with Imbalanced Spin Populations and the Quantum Phase Transition to the Normal State
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عنوان ژورنال:
- Science
دوره 316 5826 شماره
صفحات -
تاریخ انتشار 2007