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Spectroscopy of Superfluid Pairing in Atomic Fermi Gases

H. P. Büchler·P. Zoller·W. Zwerger
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Abstract

We study the dynamic structure factor for density and spin within the crossover from BCS superfluidity of atomic fermions to the Bose-Einstein condensation of molecules. Both structure factors are experimentally accessible via Bragg spectroscopy, and allow for the identification of the pairing mechanism: the spin structure factor allows for the determination of the two particle gap, while the collective sound mode in the density structure reveals the superfluid state.

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H. P. Büchler, P. Zoller, W. Zwerger. 2004-04-05. Spectroscopy of Superfluid Pairing in Atomic Fermi Gases. https://doi.org/10.1103/physrevlett.93.080401

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