An international team including researchers at the U.K.'s University of Cambridge used sound waves to control quantum information in one electron, a step toward efficient quantum computers built from semiconductors.
The team used an electron's spin to store quantum information.
Cambridge's Hugo Lepage said, "Harnessing spin ... is a more scalable approach than using superconductivity, and we believe that using spin could lead to a quantum computer which is far more robust, since spin interactions are set by the laws of nature."
The researchers overlaid a semiconductor with metallic gates and applied a voltage to produce an electric field; directing high-frequency sound waves over the device induced vibration and distortion, trapping electrons.
The team said it was able to control a single electron's behavior with 99.5% efficiency.
From University of Cambridge
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Abstracts Copyright © 2019 SmithBucklin, Washington, DC, USA
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