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Detection of spatial correlations in an ultracold gas of fermions

M. Greiner·C. A. Regal·C. Ticknor·J. L. Bohn·D. S. Jin
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Abstract

Spatial correlations are observed in an ultracold gas of fermionic atoms close to a Feshbach resonance. The correlations are detected by inducing spin-changing rf transitions between pairs of atoms. We observe the process in the strongly interacting regime for attractive as well as for repulsive atom-atom interactions and both in the regime of high and low quantum degeneracy. The observations are compared with a two-particle model that provides theoretical predictions for the measured rf transition rates.

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M. Greiner, C. A. Regal, C. Ticknor, J. L. Bohn, D. S. Jin. 2003-08-26. Detection of spatial correlations in an ultracold gas of fermions. https://doi.org/10.1103/physrevlett.92.150405

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