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Bose Gases near Unitarity
2012
Physical Review Letters
We study the properties of strongly interacting Bose gases at the density and temperature regime when the three-body recombination rate is substantially reduced. In this regime, one can have a Bose gas with all particles in scattering states (i.e. the "upper branch") with little loss even at unitarity over the duration of the experiment. We show that because of bosonic enhancement, pair formation is shifted to the atomic side of the original resonance (where scattering length a_s<0), opposite
doi:10.1103/physrevlett.108.195301
pmid:23003053
fatcat:6m7uwy5uwncbzgn2teg5jy7g3a