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September 24th, 2003
Theory puts new spin on IC spin current
A recent theoretical study of the quantum Hall effect (QHE), a type of superconductivity that occurs in semiconductors, suggests a new route to room-temperature quantum computers. The researchers think they have discovered a spin current that is associated with holes rather than electrons in semiconductors. The predicted current would be able to inject spin momentum into quantum dots and would also interact with conventional electron currents, providing a bridge between electronics and spin-based quantum circuits.
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