Communications of the ACM
Quantum State of Single Electrons Controlled by 'Surfing' on Sound Waves
An international team of researchers used sound waves to control quantum information in a single electron, a step toward efficient quantum computers built from semiconductors.
Credit: Hermann Edlbauer
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
View Full Article
Abstracts Copyright © 2019 SmithBucklin, Washington, DC, USA
No entries found