Connecting Berezinskii-Kosterlitz-Thouless and BEC Phase Transitions by Tuning Interactions in a Trapped Gas

This work was supported by AFOSR, ARO, DARPA OLE, and EPSRC [Grant No. EP/K003615/1]. N. N. acknowledges support from Trinity College, Cambridge, R. P. S. from the Royal Society, and K. G. H. V. from DAAD.