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Nature 429, 251-253 (20 May 2004) | doi:10.1038/429251a

Condensed-matter physics:  Atomic beads on strings of light

Murray J. Holland1

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A new regime of strongly correlated quantum behaviour has been reached with the creation of a one-dimensional Tonks–Girardeau gas from ultracold atoms trapped within thin tubes of light.

Some materials reveal their underlying quantum nature at ultracold temperatures. Spectacular examples are superconductors and superfluids, in which frictionless currents flow at temperatures near absolute zero.

  1. Murray J. Holland is in the Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA.
    e-mail: Email: murray.holland@colorado.edu

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