What is the record for the largest number of bosons placed in a Bose-Einstein condensate?
What are the prospects for how high this might get in the future?
EDIT: These guys reported 20 million atoms in 2008. "Large atom number Bose-Einstein Condensate machines". http://www98.griffith.edu.au/dspace/bitstream/handle/10072/21541/33525_1.pdf
EDIT 2: van der Straten's group reported 100-200 million.
But these guys don't seem to claim the largest BEC, so I wonder if there's larger.
EDIT 3: ~ 1 billion hydrogen atoms back in 2000 by Greytak et al.
Of course, hydrogen has only 1 nucleon while sodium (used by van der Straten et al.) has 23, so these are quite comparable in terms of mass.