@inproceedings{vortexformationofaboseeinstein,
  title = {Vortex formation of a Bose–Einstein condensate in a rotating deep optical lattice},
  author = {Akira Kato and Yuki Nakano and Kenichi Kasamatsu and and Tetsuo Matsui},
  year = {2011},
  booktitle = {Physical Review A 2011 11},
  url = {https://journals.aps.org/pra/abstract/10.1103/PhysRevA.84.053623},
}