Observation of vortex phase singularities in Bose-Einstein condensates.
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Inouye S, et al. Among authors: ketterle w.
Phys Rev Lett. 2001 Aug 20;87(8):080402. doi: 10.1103/PhysRevLett.87.080402. Epub 2001 Aug 2.
Phys Rev Lett. 2001.
PMID: 11497929