Extremely slow Drude relaxation of correlated electrons

@article{Scheffler2005ExtremelySD,
  title={Extremely slow Drude relaxation of correlated electrons},
  author={Marc Scheffler and Martin Dressel and M. Jourdan and Hermann Adrian},
  journal={Nature},
  year={2005},
  volume={438},
  pages={1135-1137}
}
The electrical conduction of metals is governed by how freely mobile electrons can move throughout the material. This movement is hampered by scattering with other electrons, as well as with impurities or thermal excitations (phonons). Experimentally, the scattering processes of single electrons are not observed, but rather the overall response of all mobile charge carriers within a sample. The ensemble dynamics can be described by the relaxation rates, which express how fast the system… 

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