91 research outputs found
Detection of Pair-Superfluidity for bosonic mixtures in optical lattices
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.Comment: 4 pages, 4 figure
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