Bragg spectroscopy of a strongly interacting Fermi gas.
نویسندگان
چکیده
We present a comprehensive study of the Bose-Einstein condensate to Bardeen-Cooper-Schrieffer (BEC-BCS) crossover in fermionic 6Li using Bragg spectroscopy. A smooth transition from molecular to atomic spectra is observed with a clear signature of pairing at and above unitarity. These spectra probe the dynamic and static structure factors of the gas and provide a direct link to two-body correlations. We have characterized these correlations and measured their density dependence across the broad Feshbach resonance at 834 G.
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ورودعنوان ژورنال:
- Physical review letters
دوره 101 25 شماره
صفحات -
تاریخ انتشار 2008