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Nature 418, 597-598 (8 August 2002) | doi:10.1038/418597a

Semiconductor physics: One at a time, please

Manfred Bayer

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Semiconductor quantum dots could become the basis of the much-talked-about quantum computer. A single-electron 'turnstile' device is a promising way to read out the information being processed.

Physicists are actively seeking to transfer the weird phenomena of the quantum world from their laboratories to the real world. In particular, the prospect of quantum-information processing has attracted considerable attention for its potential to improve the speed and reliability of data handling1.