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Quantum physics

Wheels within wheels

Quasi-particles, an ingenious dodge used to simplify calculations on vast systems of interacting particles, seem to account for the fractional quantum Hall effect. But do we now need a further generation of quasi-particles?

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Figure 1: The Hall effect.

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Correspondence to Jurgen H. Smet.

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Smet, J. Wheels within wheels. Nature 422, 391–392 (2003). https://doi.org/10.1038/422391a

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