Probing many-body states of ultra-cold atoms via noise correlations

Details Probing many-body states of ultra-cold atoms via noise correlations Probing many-body states of ultra-cold atoms via noise correlations

2003-06-09

arxiv.org/abs/cond-mat/0306226v1

Phys. Rev. A 70, 013603 (2004)

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1103/PhysRevA.70.013603

We propose to utilize density-density correlations in the image of an expanding gas cloud to probe complex many body states of trapped ultra-cold atoms. In particular we show how this technique can be used to detect superfluidity of fermionic gases and reveal broken spin symmetries in Mott-states of atoms in optical lattices. The feasibility of the method is investigated by analysis of the relevant signal to noise ratio including experimental imperfections.

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