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arxiv: 0712.1445 · v4 · submitted 2007-12-10 · ❄️ cond-mat.other

Critical Temperature and Condensate Fraction of a Fermion Pair Condensate

classification ❄️ cond-mat.other
keywords condensatetemperaturecriticalfractionfermionmeasurementspairatoms
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We report on measurements of the critical temperature and the temperature dependence of the condensate fraction for a fermion pair condensate of 6Li atoms. The Bragg spectroscopy is employed to determine the critical temperature and the condensate fraction after a fast magnetic field ramp to the molecular side of the Feshbach resonance. Our measurements reveal the level-off of the critical temperature and the limiting behavior of condensate fraction near the unitarity limit.

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