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Nature 464, 209-216 (11 March 2010) | doi:10.1038/nature08918; Published online 10 March 2010

Electron liquids and solids in one dimension

Vikram V. Deshpande1, Marc Bockrath2, Leonid I. Glazman3 & Amir Yacoby4

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Even though bulk metallic systems contain a very large number of strongly interacting electrons, their properties are well described within Landau's Fermi liquid theory of non-interacting quasiparticles. Although many higher-dimensional systems can be successfully understood on the basis of such non-interacting theories, this is not possible for one-dimensional systems. When confined to narrow channels, electron interaction gives rise to such exotic phenomena as spin–charge separation and the emergence of correlated-electron insulators. Such strongly correlated electronic behaviour has recently been seen in experiments on one-dimensional carbon nanotubes and nanowires, and this behaviour challenges the theoretical description of such systems.

  1. Department of Physics, Columbia University, New York, New York 10027, USA.
  2. Department of Physics and Astronomy, University of California, Riverside, California 92521, USA.
  3. Departments of Physics and Applied Physics, Yale University, New Haven, Connecticut 06520, USA.
  4. Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA.

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