Detection of Pair-Superfluidity for bosonic mixtures in optical lattices

Details Detection of Pair-Superfluidity for bosonic mixtures in optical lattices Detection of Pair-Superfluidity for bosonic mixtures in optical lattices

2009-12-22

arxiv.org/abs/0912.4452v1

Physics

Condensed Matter

Quantum Gases

4 pages, 4 figures

Scientific paper

We consider a mixture of two bosonic species with tunable interspecies interaction in a periodic potential and discuss the advantages of low filling factors on the detection of the pair-superfluid phase. We show how the emergence of such a phase can be put dramatically into evidence by looking at the interference pictures and density correlations after expansion and by changing the interspecies interaction from attractive to repulsive.

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