@article{891946,
  author = {Changhyun Ryu and Mikkel Andersen and Pierre Clade and Vasant Natarajan and Kristian Helmerson and William D. Phillips},
  title = {Observation of Persistent Flow of a Bose-Einstein Condensate in a Toroidal Trap},
  year = {2008},
  month = {2008-10-16 14:10:14},
  publisher = {Physical Review Letters},
  language = {en},
}