News and Views

Nature Physics 3, 13 - 14 (2007)
doi:10.1038/nphys498

Nonlinear optics: Shocking superfluids

Lene Vestergaard Hau1

  1. Lene Vestergaard Hau is in the Department of Physics and in the Division of Engineering and Applied Sciences, Harvard University, 17 Oxford Street, Cambridge, Massachusetts 02138, USA. e-mail: hau@physics.harvard.edu

How shock waves travel through a superfluid provides clues to understanding the deeper nature of Bose–Einstein condensation. An optical analogue that behaves as a pure superfluid could tell us what these clues mean.

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